diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..0dcfcdb41ace182180679e0bf62a2c6484e6392d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/.cproject
+/.project
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..e32a8403d0b2e36560b77844c423e9690a0e1031
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,189 @@
+stages:
+  - license
+  - build_and_test
+  - demos
+  
+############ YAML ANCHORS ############
+.preliminaries_template: &preliminaries_definition
+  ## Install ssh-agent if not already installed, it is required by Docker.
+  ## (change apt-get to yum if you use an RPM-based image)
+  - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
+
+  ## Run ssh-agent (inside the build environment)
+  - eval $(ssh-agent -s)
+
+  ## Add the SSH key stored in SSH_PRIVATE_KEY variable to the agent store
+  ## We're using tr to fix line endings which makes ed25519 keys work
+  ## without extra base64 encoding.
+  ## https://gitlab.com/gitlab-examples/ssh-private-key/issues/1#note_48526556
+  - mkdir -p ~/.ssh
+  - chmod 700 ~/.ssh  
+  - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
+  # - echo "$SSH_KNOWN_HOSTS" > $HOME/.ssh/known_hosts
+  - ssh-keyscan -H -p 2202 gitlab.iri.upc.edu >> $HOME/.ssh/known_hosts
+
+  # update apt
+  - apt-get update
+
+  # create ci_deps folder (if not exists)
+  - mkdir -pv ci_deps
+
+  # manually source ros setup.bash
+  - source /root/catkin_ws/devel/setup.bash
+  - roscd # check that it works
+
+.license_header_template: &license_header_definition
+  - cd $CI_PROJECT_DIR
+
+  # configure git
+  - export CI_NEW_BRANCH=ci_processing$RANDOM
+  - echo creating new temporary branch... $CI_NEW_BRANCH
+  - git config --global user.email "${CI_EMAIL}"
+  - git config --global user.name "${CI_USERNAME}"
+  - git checkout -b $CI_NEW_BRANCH # temporary branch
+
+  # license headers
+  - export CURRENT_YEAR=$( date +'%Y' )
+  - echo "current year:" ${CURRENT_YEAR}
+  - if [ -f license_header_${CURRENT_YEAR}.txt ]; then
+      # add license headers to new files
+  -   echo "File license_header_${CURRENT_YEAR}.txt already exists. License headers are assumed to be updated. Adding headers to new files..."
+  -   ./ci_deps/wolf/wolf_scripts/license_manager.sh --add --path=. --license-header=license_header_${CURRENT_YEAR}.txt --exclude=ci_deps
+  - else
+      # update license headers of all files
+  -   export PREV_YEAR=$(( CURRENT_YEAR-1 ))
+  -   echo "Creating new file license_header_${CURRENT_YEAR}.txt..."
+  -   git mv license_header_${PREV_YEAR}.txt license_header_${CURRENT_YEAR}.txt
+  -   sed -i "s/${PREV_YEAR}/${PREV_YEAR},${CURRENT_YEAR}/g" license_header_${CURRENT_YEAR}.txt
+  -   ./ci_deps/wolf/wolf_scripts/license_manager.sh --update --path=. --license-header=license_header_${CURRENT_YEAR}.txt --exclude=ci_deps
+  - fi
+
+  # push changes (if any)
+  - if git commit -a -m "[skip ci] license headers added or modified" ; then
+  -   git remote set-url --push origin "ssh://git@gitlab.iri.upc.edu:2202/${CI_PROJECT_PATH}.git"
+  -   git push origin $CI_NEW_BRANCH:${CI_COMMIT_REF_NAME}
+  - else
+  -   echo "No changes, nothing to commit!"
+  - fi
+
+.install_wolf_template: &install_wolf_definition
+  - cd ${CI_PROJECT_DIR}/ci_deps
+  - if [ -d wolf ]; then
+  -   echo "directory wolf exists"
+  -   cd wolf
+  -   git checkout devel
+  -   git pull
+  -   git checkout $WOLF_CORE_BRANCH
+  -   git pull
+  - else
+  -   git clone -b $WOLF_CORE_BRANCH ssh://git@gitlab.iri.upc.edu:2202/mobile_robotics/wolf_projects/wolf_lib/wolf.git
+  -   cd wolf
+  - fi
+  - mkdir -pv build
+  - cd build
+  - cmake -DCMAKE_BUILD_TYPE=release -DBUILD_DEMOS=OFF -DBUILD_TESTS=OFF ..
+  - make -j$(nproc)
+  - make install
+
+.install_wolfimu_template: &install_wolfimu_definition
+  - cd ${CI_PROJECT_DIR}/ci_deps
+  - if [ -d imu ]; then
+  -   echo "directory imu exists"
+  -   cd imu
+  -   git checkout devel
+  -   git pull
+  -   git checkout $WOLF_IMU_BRANCH
+  -   git pull
+  - else
+  -   git clone -b $WOLF_IMU_BRANCH ssh://git@gitlab.iri.upc.edu:2202/mobile_robotics/wolf_projects/wolf_lib/plugins/imu.git
+  -   cd imu
+  - fi
+  - mkdir -pv build
+  - cd build
+  - cmake -DCMAKE_BUILD_TYPE=release -DBUILD_TESTS=OFF ..
+  - make -j$(nproc)
+  - make install
+
+.clone_wolfrosnode_template: &clone_wolfrosnode_definition
+  - roscd
+  - cd ../src
+  - git clone ssh://git@gitlab.iri.upc.edu:2202/mobile_robotics/wolf_projects/wolf_ros/wolf_ros_node.git
+  - cd wolf_ros_node
+  - git checkout $WOLF_ROS_CORE_BRANCH
+
+.build_and_test_template: &build_and_test_definition
+  - roscd
+  - cd ../src
+  - git clone ssh://git@gitlab.iri.upc.edu:2202/${CI_PROJECT_PATH}.git
+  - cd wolf_ros_imu
+  - git checkout $CI_COMMIT_BRANCH
+  - cd ../..
+  - catkin_make
+
+############ LICENSE HEADERS ############
+license_headers:
+  stage: license
+  image: labrobotica/wolf_deps_ros:20.04
+  cache: []
+  except:
+    - master
+  before_script:
+    - *preliminaries_definition
+    - *install_wolf_definition
+  script:
+    - *license_header_definition
+
+############ UBUNTU 18.04 TEST ############
+build_and_test:bionic:
+  stage: build_and_test
+  image: labrobotica/wolf_deps_ros:18.04
+  cache:
+    - key: wolf-bionic
+      paths:
+      - ci_deps/wolf/
+    - key: imu-bionic
+      paths:
+      - ci_deps/imu/
+  except:
+    - master
+  before_script:
+    - *preliminaries_definition
+    - *install_wolf_definition
+    - *install_wolfimu_definition
+    - *clone_wolfrosnode_definition
+    - ldconfig
+  script:
+    - *build_and_test_definition
+
+############ UBUNTU 20.04 TEST ############
+build_and_test:focal:
+  stage: build_and_test
+  image: labrobotica/wolf_deps_ros:20.04
+  cache:
+    - key: wolf-focal
+      paths:
+      - ci_deps/wolf/
+    - key: imu-focal
+      paths:
+      - ci_deps/imu/
+  except:
+    - master
+  before_script:
+    - *preliminaries_definition
+    - *install_wolf_definition
+    - *install_wolfimu_definition
+    - *clone_wolfrosnode_definition
+    - ldconfig
+  script:
+    - *build_and_test_definition
+
+############ RUN DEMOS ############
+demo_imu:
+  stage: demos
+  variables:
+    WOLF_CORE_BRANCH: $WOLF_CORE_BRANCH
+    WOLF_IMU_BRANCH: $WOLF_IMU_BRANCH
+    WOLF_ROS_CORE_BRANCH: $WOLF_ROS_CORE_BRANCH
+    WOLF_ROS_IMU_BRANCH: $CI_COMMIT_BRANCH
+  trigger: 
+    project: mobile_robotics/wolf_projects/wolf_ros/demos/wolf_demo_imu2d
diff --git a/.settings/.gitignore b/.settings/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..d81d4c414cc298fa21635d0b27c126c1b0a7ff3a
--- /dev/null
+++ b/.settings/.gitignore
@@ -0,0 +1 @@
+/language.settings.xml
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9730599eccfcf4c95a3a3b747a9ef6415333787e..54c0ef96c96713c6d5faf35b6da6f05537ad26cb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 2.8.3)
 project(wolf_ros_imu)
 
-## Compile as C++11, supported in ROS Kinetic and newer
-add_compile_options(-std=c++11)
+## Compile as C++14
+add_compile_options(-std=c++14)
 
 # SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/wolf_ros_wrapper/cmake_modules")
 ## Find catkin macros and libraries
@@ -21,7 +21,7 @@ find_package(catkin REQUIRED COMPONENTS
 # find_package(Boost REQUIRED COMPONENTS system)
 # find_package(Ceres REQUIRED)
 # find_package(Eigen3 REQUIRED)
-find_package(wolf REQUIRED)
+find_package(wolfcore REQUIRED)
 find_package(wolfimu REQUIRED)
 
 ## Uncomment this if the package has a setup.py. This macro ensures
@@ -120,11 +120,11 @@ catkin_package(
 
 ## Specify additional locations of header files
 ## Your package locations should be listed before other locations
-message("Wolf include path: ${wolf_INCLUDE_DIR}")
+message("Wolf include path: ${wolfcore_INCLUDE_DIRS}")
 include_directories(
     include
   ${EIGEN_INCLUDE_DIRS}
-  ${wolf_INCLUDE_DIRS}
+  ${wolfcore_INCLUDE_DIRS}
   ${wolfimu_INCLUDE_DIRS}
   ${catkin_INCLUDE_DIRS}
   ${CERES_INCLUDE_DIRS}
@@ -134,7 +134,12 @@ include_directories(
 # add_library(${PROJECT_NAME}
 #   src/${PROJECT_NAME}/wolf_ros.cpp
 # )
-add_library(wolf_subscriber_imu src/wolf_subscriber_imu.cpp)
+add_library(subscriber_${PROJECT_NAME}
+  src/subscriber_compass.cpp
+  src/subscriber_imu.cpp
+  src/subscriber_imu_enableable.cpp)
+add_library(publisher_${PROJECT_NAME}
+  src/publisher_imu_bias.cpp)
 
 ## Add cmake target dependencies of the library
 ## as an example, code may need to be generated before libraries
@@ -158,11 +163,16 @@ add_library(wolf_subscriber_imu src/wolf_subscriber_imu.cpp)
 #add_dependencies(${PROJECT_NAME}_visualizer ${PROJECT_NAME}_gencfg)
 
 ## Specify libraries to link a library or executable target against
-target_link_libraries(wolf_subscriber_imu 
-					  ${wolf_LIBRARIES} 
-					  ${wolfimu_LIBRARIES} 
-					  ${sensor_msgs_LIBRARIES}
-					  )
+target_link_libraries(subscriber_${PROJECT_NAME}
+            ${wolfcore_LIBRARIES}
+            ${wolfimu_LIBRARIES}
+            ${sensor_msgs_LIBRARIES}
+            )
+target_link_libraries(publisher_${PROJECT_NAME}
+            ${wolfcore_LIBRARIES}
+            ${wolfimu_LIBRARIES}
+            ${sensor_msgs_LIBRARIES}
+            )
 
 #############
 ## Install ##
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..281d399f13dfd23087acc56303dd38d68162587c
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,619 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
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+pattern of such abuse occurs in the area of products for individuals to
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+stand ready to extend this provision to those domains in future versions
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+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
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+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
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+same work.
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+
+  Nothing in this License shall be construed as excluding or limiting
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+
+  12. No Surrender of Others' Freedom.
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+
+  13. Use with the GNU Affero General Public License.
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+
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+  15. Disclaimer of Warranty.
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+
+  17. Interpretation of Sections 15 and 16.
+
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diff --git a/include/publisher_imu_bias.h b/include/publisher_imu_bias.h
new file mode 100644
index 0000000000000000000000000000000000000000..5cf9658827d4608db1302246acd09c2e879d3c63
--- /dev/null
+++ b/include/publisher_imu_bias.h
@@ -0,0 +1,59 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#ifndef PUBLISHER_IMU_BIAS_H
+#define PUBLISHER_IMU_BIAS_H
+
+/**************************
+ *      WOLF includes     *
+ **************************/
+#include "core/problem/problem.h"
+#include "imu/sensor/sensor_imu.h"
+
+#include "publisher.h"
+
+namespace wolf
+{
+
+class PublisherImuBias: public Publisher
+{
+        std::string map_frame_id_;
+        ros::Publisher pub_accel_, pub_gyro_;
+        SensorImuPtr sensor_imu_;
+
+    public:
+        PublisherImuBias(const std::string& _unique_name,
+                      const ParamsServer& _server,
+                      const ProblemPtr _problem);
+        WOLF_PUBLISHER_CREATE(PublisherImuBias);
+
+        virtual ~PublisherImuBias(){};
+
+        void initialize(ros::NodeHandle &nh, const std::string& topic) override;
+
+        void publishDerived() override;
+
+};
+
+WOLF_REGISTER_PUBLISHER(PublisherImuBias)
+}
+
+#endif
diff --git a/include/publisher_map_grid_2d_gravity.h b/include/publisher_map_grid_2d_gravity.h
new file mode 100644
index 0000000000000000000000000000000000000000..e81ea60c054b8e9263eb1e73a2dbae6e36c25ff8
--- /dev/null
+++ b/include/publisher_map_grid_2d_gravity.h
@@ -0,0 +1,61 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#ifndef PUBLISHER_MAP_GRID_2D_GRAVITY_H
+#define PUBLISHER_MAP_GRID_2D_GRAVITY_H
+
+/**************************
+ *      WOLF includes     *
+ **************************/
+#include "core/problem/problem.h"
+#include "imu/sensor/sensor_imu.h"
+
+#include "publisher.h"
+
+
+namespace wolf
+{
+
+class PublisherMapGrid2dGravity: public Publisher
+{
+        std::string map_frame_id_;
+        ros::Publisher pub_accel_, pub_gyro_;
+        SensorImuPtr sensor_imu_;
+        
+
+    public:
+        PublisherMapGrid2dGravity(const std::string& _unique_name,
+                      const ParamsServer& _server,
+                      const ProblemPtr _problem);
+        WOLF_PUBLISHER_CREATE(PublisherImuBias);
+
+        virtual ~PublisherMapGrid2dGravity(){};
+
+        void initialize(ros::NodeHandle &nh, const std::string& topic) override;
+
+        void publishDerived() override;
+
+};
+
+WOLF_REGISTER_PUBLISHER(PublisherImuBias)
+}
+
+#endif
diff --git a/include/subscriber_compass.h b/include/subscriber_compass.h
new file mode 100644
index 0000000000000000000000000000000000000000..e81555238ba2cd796a69b1362c378f23f5d53c36
--- /dev/null
+++ b/include/subscriber_compass.h
@@ -0,0 +1,85 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#ifndef WOLF_SUBSCRIBER_COMPASS_H_
+#define WOLF_SUBSCRIBER_COMPASS_H_
+
+/**************************
+ *      WOLF includes     *
+ **************************/
+#include <core/yaml/parser_yaml.h>
+#include <core/common/wolf.h>
+#include <core/problem/problem.h>
+#include <core/utils/params_server.h>
+#include <imu/capture/capture_compass.h>
+#include <imu/sensor/sensor_compass.h>
+
+/**************************
+ *      ROS includes      *
+ **************************/
+#include <ros/ros.h>
+#include <sensor_msgs/MagneticField.h>
+#include <std_msgs/Bool.h>
+
+/**************************
+ *      STD includes      *
+ **************************/
+#include <iostream>
+#include <iomanip>
+#include <queue>
+
+/**************************
+ *    WOLF-ROS includes   *
+ **************************/
+#include "subscriber.h"
+
+namespace wolf
+{
+
+class SubscriberCompass : public Subscriber
+{
+    protected:
+        std::string cov_source_;
+        SensorCompassPtr sensor_compass_;
+        int imu_x_axis_, imu_y_axis_, imu_z_axis_;
+        bool imu_x_neg_, imu_y_neg_, imu_z_neg_;
+
+        // enableable
+        bool enableable_, enabled_;
+        std::string topic_enable_;
+        ros::Subscriber sub_enable_;
+
+    public:
+        // Constructor
+        SubscriberCompass(const std::string& _unique_name,
+                          const ParamsServer& _server,
+                          const SensorBasePtr _sensor_ptr);
+        WOLF_SUBSCRIBER_CREATE(SubscriberCompass);
+
+        virtual void initialize(ros::NodeHandle& nh, const std::string& topic);
+
+        void callback(const sensor_msgs::MagneticField::ConstPtr& msg);
+        void callbackEnable(const std_msgs::Bool::ConstPtr& msg);
+};
+WOLF_REGISTER_SUBSCRIBER(SubscriberCompass)
+
+}
+#endif
diff --git a/include/subscriber_imu.h b/include/subscriber_imu.h
new file mode 100644
index 0000000000000000000000000000000000000000..c7b8cfda5f7fd329954fcf5fceb73d232aa05bf5
--- /dev/null
+++ b/include/subscriber_imu.h
@@ -0,0 +1,80 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#ifndef WOLF_SUBSCRIBER_IMU_H_
+#define WOLF_SUBSCRIBER_IMU_H_
+
+/**************************
+ *      WOLF includes     *
+ **************************/
+#include "core/yaml/parser_yaml.h"
+#include "core/common/wolf.h"
+#include "core/problem/problem.h"
+#include "core/processor/processor_motion.h"
+#include "core/utils/params_server.h"
+
+/**************************
+ *      ROS includes      *
+ **************************/
+#include <ros/ros.h>
+#include <sensor_msgs/Imu.h>
+
+/**************************
+ *      STD includes      *
+ **************************/
+#include <iostream>
+#include <iomanip>
+#include <queue>
+
+/**************************
+ *    WOLF-ROS includes   *
+ **************************/
+#include "subscriber.h"
+
+namespace wolf
+{
+
+class SubscriberImu : public Subscriber
+{
+    protected:
+        bool in_degrees_;
+        std::string cov_source_;
+        bool non_orthogonal_gravity_;
+        ros::Publisher pub_bias_accel_, pub_bias_gyro_, pub_imu_corrected_, pub_imu_remapped_, pub_pose_from_origin_, pub_slope_;
+        int imu_x_axis_, imu_y_axis_, imu_z_axis_;
+        bool imu_x_neg_, imu_y_neg_, imu_z_neg_;
+        ProcessorMotionPtr processor_motion_ptr_;
+
+    public:
+        // Constructor
+        SubscriberImu(const std::string& _unique_name,
+                      const ParamsServer& _server,
+                      const SensorBasePtr _sensor_ptr);
+        WOLF_SUBSCRIBER_CREATE(SubscriberImu);
+
+        virtual void initialize(ros::NodeHandle& nh, const std::string& topic);
+
+        void callback(const sensor_msgs::Imu::ConstPtr& msg);
+};
+WOLF_REGISTER_SUBSCRIBER(SubscriberImu)
+
+}
+#endif
diff --git a/include/subscriber_imu_enableable.h b/include/subscriber_imu_enableable.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb255917d7c48c06622272369893be42fa883e02
--- /dev/null
+++ b/include/subscriber_imu_enableable.h
@@ -0,0 +1,94 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#ifndef WOLF_SUBSCRIBER_IMU_ENABLEABLE_H_
+#define WOLF_SUBSCRIBER_IMU_ENABLEABLE_H_
+
+/**************************
+ *      WOLF includes     *
+ **************************/
+#include <core/yaml/parser_yaml.h>
+#include <core/common/wolf.h>
+#include <core/problem/problem.h>
+#include <core/utils/params_server.h>
+#include <imu/capture/capture_imu.h>
+#include <imu/sensor/sensor_imu.h>
+
+/**************************
+ *      ROS includes      *
+ **************************/
+#include <ros/ros.h>
+#include <sensor_msgs/Imu.h>
+#include <std_msgs/Bool.h>
+
+/**************************
+ *      STD includes      *
+ **************************/
+#include <iostream>
+#include <iomanip>
+#include <queue>
+
+/**************************
+ *    WOLF-ROS includes   *
+ **************************/
+#include "subscriber_imu.h"
+
+namespace wolf
+{
+
+class SubscriberImuEnableable : public SubscriberImu
+{
+    protected:
+        // enablable
+        ros::Subscriber enable_sub_;
+        bool enabled_;
+        std::string topic_enable_;
+        // static initialization
+        double duration_init_static_;
+        TimeStamp first_ts_;
+        FrameBasePtr last_frame_;
+        ProcessorMotionPtr processor_motion_;
+
+        // LOW PASS FILTER
+        bool lowpass_filter_;
+        double lowpass_alpha_;
+        sensor_msgs::Imu::Ptr filtered_msg_;
+        Eigen::Vector6d filtered_vector_;
+        ros::Publisher pub_filtered_imu_;
+
+    public:
+        // Constructor
+        SubscriberImuEnableable(const std::string& _unique_name,
+                               const ParamsServer& _server,
+                               const SensorBasePtr _sensor_ptr);
+        WOLF_SUBSCRIBER_CREATE(SubscriberImuEnableable);
+
+        virtual void initialize(ros::NodeHandle& nh, const std::string& topic);
+
+        void callback(const sensor_msgs::Imu::ConstPtr& msg);
+
+        void enableCallback(const std_msgs::Bool::ConstPtr& msg);
+
+};
+WOLF_REGISTER_SUBSCRIBER(SubscriberImuEnableable)
+
+}
+#endif
diff --git a/include/wolf_subscriber_imu.h b/include/wolf_subscriber_imu.h
deleted file mode 100644
index b05cf2c169630503a7dbce3ece21c5b8b276b9e9..0000000000000000000000000000000000000000
--- a/include/wolf_subscriber_imu.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/**************************
- *      WOLF includes     *
- **************************/
-#include <core/yaml/parser_yaml.hpp>
-#include <core/common/wolf.h>
-#include <core/problem/problem.h>
-#include <core/utils/params_server.hpp>
-#include <gnss/capture/capture_imu.h>
-#include <gnss/sensor/sensor_imu.h>
-
-/**************************
- *      ROS includes      *
- **************************/
-#include <ros/ros.h>
-#include <sensor_msgs/Imu.h>
-
-/**************************
- *      STD includes      *
- **************************/
-#include <iostream>
-#include <iomanip>
-#include <queue>
-
-/**************************
- *    WOLF-ROS includes   *
- **************************/
-#include "wolf_subscriber.h"
-#include "subscriber_factory.h"
-
-using namespace wolf;
-
-class WolfSubscriberImu : public WolfSubscriber
-{
-    public:
-        // Constructor
-        WolfSubscriberImu(const SensorBasePtr& sensor_ptr);
-
-        virtual void initSubscriber(ros::NodeHandle& nh, const std::string& topic);
-
-        void callback(const sensor_msgs::Imu::ConstPtr& msg);
-
-        static std::shared_ptr<SubscriberWrapper> create(const std::string& _unique_name, const ParamsServer& _params, const SensorBasePtr _sensor_ptr);
-};
-WOLF_REGISTER_SUBSCRIBER(WolfSubscriberImu)
diff --git a/license_header_2022.txt b/license_header_2022.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0c987025f9dba3e7af993051b9bdf4b5ff400e0d
--- /dev/null
+++ b/license_header_2022.txt
@@ -0,0 +1,17 @@
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/src/publisher_imu_bias.cpp b/src/publisher_imu_bias.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..cc842f2fcec73fcc8b5f47d39fd2698521501b8c
--- /dev/null
+++ b/src/publisher_imu_bias.cpp
@@ -0,0 +1,64 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#include "publisher_imu_bias.h"
+#include <ros/ros.h>
+#include "tf/transform_datatypes.h"
+#include <geometry_msgs/Vector3.h>
+
+namespace wolf
+{
+
+PublisherImuBias::PublisherImuBias(const std::string& _unique_name,
+                                   const ParamsServer& _server,
+                                   const ProblemPtr _problem) :
+        Publisher(_unique_name, _server, _problem)
+{
+    sensor_imu_ = std::static_pointer_cast<SensorImu>(_problem->getSensor(_server.getParam<std::string>(prefix_ + "/sensor_name")));
+}
+
+void PublisherImuBias::initialize(ros::NodeHandle& nh, const std::string& topic)
+{
+    pub_accel_ = nh.advertise<geometry_msgs::Vector3>(topic + "_bias_accel", 1);
+    pub_gyro_  = nh.advertise<geometry_msgs::Vector3>(topic + "_bias_gyro", 1);
+}
+
+void PublisherImuBias::publishDerived()
+{
+    // Fill PoseStamped msg
+    geometry_msgs::Vector3 accel_bias_msg, gyro_bias_msg;
+
+    Eigen::Vector3d accel_bias = sensor_imu_->getIntrinsic()->getState().head(3);
+    Eigen::Vector3d gyro_bias = sensor_imu_->getIntrinsic()->getState().tail(3);
+
+    accel_bias_msg.x = accel_bias(0);
+    accel_bias_msg.y = accel_bias(1);
+    accel_bias_msg.z = accel_bias(2);
+
+    gyro_bias_msg.x = gyro_bias(0);
+    gyro_bias_msg.y = gyro_bias(1);
+    gyro_bias_msg.z = gyro_bias(2);
+
+    pub_accel_.publish(accel_bias_msg);
+    pub_gyro_.publish(gyro_bias_msg);
+}
+
+}
diff --git a/src/publisher_map_grid_2d_gravity.cpp b/src/publisher_map_grid_2d_gravity.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..866b1002185b24a9cb750afd9868a71e6037b331
--- /dev/null
+++ b/src/publisher_map_grid_2d_gravity.cpp
@@ -0,0 +1,65 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#include "publisher_map_grid_2d_gravity.h"
+#include <ros/ros.h>
+#include "tf/transform_datatypes.h"
+#include <geometry_msgs/Vector3.h>
+#include <visualization_msgs/MarkerArray.h>
+
+namespace wolf
+{
+
+PublisherMapGrid2dGravity::PublisherMapGrid2dGravity(const std::string& _unique_name,
+                             const ParamsServer& _server,
+                             const ProblemPtr _problem) :
+        Publisher(_unique_name, _server, _problem)
+{
+    sensor_imu_ = std::static_pointer_cast<SensorImu>(_problem->getSensor(_server.getParam<std::string>(prefix_ + "/sensor_name")));
+}
+
+void PublisherMapGrid2dGravity::initialize(ros::NodeHandle& nh, const std::string& topic)
+{
+    pub_accel_ = nh.advertise<geometry_msgs::Vector3>(topic + "_bias_accel", 1);
+    pub_gyro_  = nh.advertise<geometry_msgs::Vector3>(topic + "_bias_gyro", 1);
+}
+
+void PublisherMapGrid2dGravity::publishDerived()
+{
+    // Fill PoseStamped msg
+    geometry_msgs::Vector3 accel_bias_msg, gyro_bias_msg;
+
+    Eigen::Vector3d accel_bias = sensor_imu_->getIntrinsic()->getState().head(3);
+    Eigen::Vector3d gyro_bias = sensor_imu_->getIntrinsic()->getState().tail(3);
+
+    accel_bias_msg.x = accel_bias(0);
+    accel_bias_msg.y = accel_bias(1);
+    accel_bias_msg.z = accel_bias(2);
+
+    gyro_bias_msg.x = gyro_bias(0);
+    gyro_bias_msg.y = gyro_bias(1);
+    gyro_bias_msg.z = gyro_bias(2);
+
+    pub_accel_.publish(accel_bias_msg);
+    pub_gyro_.publish(gyro_bias_msg);
+}
+
+}
diff --git a/src/subscriber_compass.cpp b/src/subscriber_compass.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..044c38a2fcc01bd72d8304371a29b92385423c4a
--- /dev/null
+++ b/src/subscriber_compass.cpp
@@ -0,0 +1,124 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#include "../include/subscriber_compass.h"
+
+using namespace wolf;
+
+// Constructor
+SubscriberCompass::SubscriberCompass(const std::string& _unique_name,
+                                     const ParamsServer& _server,
+                                     const SensorBasePtr _sensor_ptr) :
+        Subscriber(_unique_name, _server, _sensor_ptr),
+        sensor_compass_(std::dynamic_pointer_cast<SensorCompass>(_sensor_ptr))
+{
+    assert(sensor_compass_ != nullptr);
+
+    cov_source_  = _server.getParam<std::string>(prefix_ + "/cov_source");
+    assert(cov_source_ == "msg" or cov_source_=="sensor");
+    enableable_  = _server.getParam<bool>(prefix_ + "/enableable");
+    topic_enable_= _server.getParam<std::string>(prefix_ + "/topic_enable");
+    enabled_ = not enableable_; // if enablable -> initialize to not enabled
+
+    // AXES MAPPING
+    try
+    {
+        int imu_x_axis = _server.getParam<int>(prefix_ + "/imu_x_axis");
+        int imu_y_axis = _server.getParam<int>(prefix_ + "/imu_y_axis");
+        int imu_z_axis = _server.getParam<int>(prefix_ + "/imu_z_axis");
+        imu_x_axis_ = abs(imu_x_axis)-1;
+        imu_y_axis_ = abs(imu_y_axis)-1;
+        imu_z_axis_ = abs(imu_z_axis)-1;
+        imu_x_neg_ = imu_x_axis < 0;
+        imu_y_neg_ = imu_y_axis < 0;
+        imu_z_neg_ = imu_z_axis < 0;
+    }
+    catch(...)
+    {
+        WOLF_INFO("SubscriberCompass: parameters 'imu_x_axis'm, 'imu_y_axis' and 'imu_z_axis' not set. Using default values (1,2 and 3)");
+        imu_x_axis_ = 0;
+        imu_y_axis_ = 1;
+        imu_z_axis_ = 2;
+        imu_x_neg_ = false;
+        imu_y_neg_ = false;
+        imu_z_neg_ = false;
+    }
+    if (imu_x_axis_ < 0 or imu_x_axis_ > 2 or
+        imu_y_axis_ < 0 or imu_y_axis_ > 2 or
+        imu_z_axis_ < 0 or imu_z_axis_ > 2 or
+        imu_x_axis_ == imu_y_axis_ or
+        imu_x_axis_ == imu_z_axis_ or
+        imu_y_axis_ == imu_z_axis_)
+        //TODO: add check right-handed axes
+    {
+        throw(std::runtime_error("SubscriberCompass: parameters 'imu_x_axis'm, 'imu_y_axis' and 'imu_z_axis' wrongly specified. Should be +/-1, +/-2 or +/-3 without repetitions."));
+    }
+}
+
+void SubscriberCompass::initialize(ros::NodeHandle& nh, const std::string& topic)
+{
+    sub_     = nh.subscribe(topic, 1, &SubscriberCompass::callback, this);
+    if (enableable_)
+        sub_enable_ = nh.subscribe(topic_enable_, 1, &SubscriberCompass::callbackEnable, this);
+}
+
+void SubscriberCompass::callback(const sensor_msgs::MagneticField::ConstPtr& msg)
+{
+    ROS_DEBUG("callback Magnetic Field!");
+
+    updateLastHeader(msg->header);
+
+    if (not enabled_)
+        return;
+
+    Eigen::Vector3d data;
+    data(imu_x_axis_) = imu_x_neg_ ? -msg->magnetic_field.x : msg->magnetic_field.x;
+    data(imu_y_axis_) = imu_y_neg_ ? -msg->magnetic_field.y : msg->magnetic_field.y;
+    data(imu_z_axis_) = imu_z_neg_ ? -msg->magnetic_field.z : msg->magnetic_field.z;
+
+    WOLF_DEBUG("data = ", data.transpose());
+
+    Eigen::Matrix3d cov(Eigen::Matrix3d::Zero());
+    if (cov_source_=="msg")
+        cov = Eigen::Map<const Eigen::Matrix3d>(msg->magnetic_field_covariance.data());
+
+    if (cov_source_=="sensor" or cov.isApprox(Eigen::Matrix3d::Zero(), 1e-9) )
+        cov = sensor_compass_->computeMeasurementCovariance(data);
+
+    // Create capture and process
+    auto capture = std::make_shared<CaptureCompass>(TimeStamp(msg->header.stamp.sec,
+                                                              msg->header.stamp.nsec),
+                                                    sensor_ptr_,
+                                                    data,
+                                                    cov);
+    capture->process();
+}
+
+
+
+void SubscriberCompass::callbackEnable(const std_msgs::Bool::ConstPtr& msg)
+{
+    if (not enabled_ and msg->data)
+        ROS_INFO("Compass has been enabled!");
+    if (enabled_ and !msg->data)
+        ROS_INFO("Compass has been disabled!");
+    enabled_ = msg->data;
+}
diff --git a/src/subscriber_imu.cpp b/src/subscriber_imu.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..f4381c1ee51a9bc393c52fe2f3f4a6ff97ca248d
--- /dev/null
+++ b/src/subscriber_imu.cpp
@@ -0,0 +1,363 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#include "../include/subscriber_imu.h"
+#include "imu/capture/capture_imu.h"
+#include "imu/sensor/sensor_imu.h"
+#include "imu/sensor/sensor_imu2d.h"
+#include <geometry_msgs/Vector3.h>
+#include <geometry_msgs/Vector3Stamped.h>
+#include <geometry_msgs/PoseStamped.h>
+#include "core/math/SE3.h"
+#include "core/math/SE2.h"
+
+using namespace wolf;
+
+// Constructor
+SubscriberImu::SubscriberImu(const std::string& _unique_name,
+                             const ParamsServer& _server,
+                             const SensorBasePtr _sensor_ptr) :
+        Subscriber(_unique_name, _server, _sensor_ptr)
+{
+    assert((_sensor_ptr->getProblem()->getDim() == 3 or _sensor_ptr->getProblem()->getDim() == 2) && "the problem's dimmension should be 2 or 3");
+    assert(_sensor_ptr->getProblem()->getDim() != 3 or std::dynamic_pointer_cast<SensorImu>(_sensor_ptr) != nullptr);
+    assert(_sensor_ptr->getProblem()->getDim() != 2 or std::dynamic_pointer_cast<SensorImu2d>(_sensor_ptr) != nullptr);
+
+    non_orthogonal_gravity_ = std::dynamic_pointer_cast<SensorImu2d>(sensor_ptr_) != nullptr and 
+                              not std::static_pointer_cast<SensorImu2d>(sensor_ptr_)->isGravityOrthogonal();
+
+    cov_source_  = _server.getParam<std::string>(prefix_ + "/cov_source");
+    assert(cov_source_ == "msg" or cov_source_=="sensor");
+
+    in_degrees_ = getParamWithDefault<bool>(_server, prefix_ + "/in_degrees", false);
+    
+    // AXES MAPPING
+    int imu_x_axis = getParamWithDefault<int>(_server, prefix_ + "/imu_x_axis", 1);
+    int imu_y_axis = getParamWithDefault<int>(_server, prefix_ + "/imu_y_axis", 2);
+    int imu_z_axis = getParamWithDefault<int>(_server, prefix_ + "/imu_z_axis", 3);
+    imu_x_axis_ = abs(imu_x_axis)-1;
+    imu_y_axis_ = abs(imu_y_axis)-1;
+    imu_z_axis_ = abs(imu_z_axis)-1;
+    imu_x_neg_ = imu_x_axis < 0;
+    imu_y_neg_ = imu_y_axis < 0;
+    imu_z_neg_ = imu_z_axis < 0;
+
+    if (imu_x_axis_ < 0 or imu_x_axis_ > 2 or
+        imu_y_axis_ < 0 or imu_y_axis_ > 2 or
+        imu_z_axis_ < 0 or imu_z_axis_ > 2 or
+        imu_x_axis_ == imu_y_axis_ or
+        imu_x_axis_ == imu_z_axis_ or
+        imu_y_axis_ == imu_z_axis_)
+        //TODO: add check right-handed axes
+    {
+        throw(std::runtime_error("SubscriberImu: parameters 'imu_x_axis'm, 'imu_y_axis' and 'imu_z_axis' wrongly specified. Should be +/-1, +/-2 or +/-3 without repetitions."));
+    }
+}
+
+void SubscriberImu::initialize(ros::NodeHandle& nh, const std::string& topic)
+{
+    sub_     = nh.subscribe(topic, 100, &SubscriberImu::callback, this);
+
+    pub_bias_accel_         = nh.advertise<geometry_msgs::Vector3>        (topic + "_bias_accel", 1);
+    pub_bias_gyro_          = nh.advertise<geometry_msgs::Vector3>        (topic + "_bias_gyro", 1);
+    pub_imu_corrected_      = nh.advertise<sensor_msgs::Imu>              (topic + "_corrected", 1);
+    pub_imu_remapped_       = nh.advertise<sensor_msgs::Imu>              (topic + "_remapped", 1);
+    pub_pose_from_origin_   = nh.advertise<geometry_msgs::PoseStamped>    (topic + "_pose_from_origin", 1);
+    pub_slope_            = nh.advertise<geometry_msgs::Vector3Stamped> (topic + "_slope_and_orientation", 1);
+}
+
+void SubscriberImu::callback(const sensor_msgs::Imu::ConstPtr& msg)
+{
+    ROS_DEBUG("callback Imu!");
+
+    updateLastHeader(msg->header);
+
+    Eigen::Vector6d data;
+
+    // accelerometer
+    data(imu_x_axis_) = imu_x_neg_ ? -msg->linear_acceleration.x : msg->linear_acceleration.x;
+    data(imu_y_axis_) = imu_y_neg_ ? -msg->linear_acceleration.y : msg->linear_acceleration.y;
+    data(imu_z_axis_) = imu_z_neg_ ? -msg->linear_acceleration.z : msg->linear_acceleration.z;
+    // gyroscope
+    data(imu_x_axis_+3) = (imu_x_neg_ ? -msg->angular_velocity.x : msg->angular_velocity.x) * (in_degrees_ ?  M_PI/180.0 : 1.0);
+    data(imu_y_axis_+3) = (imu_y_neg_ ? -msg->angular_velocity.y : msg->angular_velocity.y) * (in_degrees_ ?  M_PI/180.0 : 1.0);
+    data(imu_z_axis_+3) = (imu_z_neg_ ? -msg->angular_velocity.z : msg->angular_velocity.z) * (in_degrees_ ?  M_PI/180.0 : 1.0);
+
+    //WOLF_INFO("imu_x_axis_ = ", imu_x_neg_ ? -(imu_x_axis_+1) : (imu_x_axis_+1));
+    //WOLF_INFO("imu_y_axis_ = ", imu_y_neg_ ? -(imu_y_axis_+1) : (imu_y_axis_+1));
+    //WOLF_INFO("imu_z_axis_ = ", imu_z_neg_ ? -(imu_z_axis_+1) : (imu_z_axis_+1));
+    //WOLF_INFO("data      = ", data.transpose());
+
+    Eigen::Matrix6d cov(Eigen::Matrix6d::Zero());
+    if (cov_source_=="msg")
+    {
+        cov.topLeftCorner<3,3>()     = Eigen::Map<const Eigen::Matrix3d>(msg->linear_acceleration_covariance.data());
+        cov.bottomRightCorner<3,3>() = Eigen::Map<const Eigen::Matrix3d>(msg->angular_velocity_covariance.data());
+        if (in_degrees_)
+            cov.bottomRightCorner<3,3>() *= std::pow(M_PI/180.0, 2);
+        // TODO: apply mapping?
+    }
+
+    // if covariance not filled or manual mode
+    if (cov_source_=="sensor" or
+        cov.topLeftCorner<3,3>().isApprox(Eigen::Matrix3d::Zero(),1e-9) or
+        cov.bottomRightCorner<3,3>().isApprox(Eigen::Matrix3d::Zero(),1e-9))
+    {
+        if(sensor_ptr_->getProblem()->getDim() == 3)
+        {
+            cov = sensor_ptr_->getNoiseCov();
+        }
+        else
+        {
+            cov.topLeftCorner<2,2>() = sensor_ptr_->getNoiseCov().topLeftCorner<2,2>();    
+            cov.topRightCorner<2,1>() = sensor_ptr_->getNoiseCov().topRightCorner<2,1>();
+            cov.bottomLeftCorner<1,2>() = sensor_ptr_->getNoiseCov().bottomLeftCorner<1,2>();    
+            cov(5,5) = sensor_ptr_->getNoiseCov()(2,2);
+        }
+    }
+    // Create capture and process
+    auto capture = std::make_shared<CaptureImu>(TimeStamp(msg->header.stamp.sec, msg->header.stamp.nsec),
+                                                sensor_ptr_,
+                                                data,
+                                                cov);
+    capture->process();
+
+
+    // PUBLISH BIASES AND CORRECTED IMU DATA (unbiased and without gravity)
+    // Nothing else to do if no subscribers
+    if (pub_bias_accel_.getNumSubscribers() == 0 and
+        pub_bias_gyro_.getNumSubscribers() == 0 and
+        pub_imu_corrected_.getNumSubscribers() == 0 and
+        pub_imu_remapped_.getNumSubscribers() == 0)
+        return;
+
+    // get biases
+    Eigen::VectorXd bias = sensor_ptr_->getIntrinsic()->getState();
+
+    // Accelerometers
+    if (pub_bias_accel_.getNumSubscribers() != 0)
+    {
+        geometry_msgs::Vector3 accel_bias_msg;
+
+        accel_bias_msg.x = bias(0);
+        accel_bias_msg.y = bias(1);
+        accel_bias_msg.z = (sensor_ptr_->getProblem()->getDim() == 3 ? bias(2):0);
+
+        pub_bias_accel_.publish(accel_bias_msg);
+    }
+
+    // Gyros
+    if (pub_bias_gyro_.getNumSubscribers() != 0)
+    {
+        geometry_msgs::Vector3 gyro_bias_msg;
+
+        if(sensor_ptr_->getProblem()->getDim() == 3)
+        {
+            gyro_bias_msg.x = bias(3);
+            gyro_bias_msg.y = bias(4);
+            gyro_bias_msg.z = bias(5);
+        }
+        if(sensor_ptr_->getProblem()->getDim() == 2)
+        {
+            gyro_bias_msg.x = 0;
+            gyro_bias_msg.y = 0;
+            gyro_bias_msg.z = bias(2);
+        }
+
+        pub_bias_gyro_.publish(gyro_bias_msg);
+    }
+
+    // Publish IMU message without bias and gravity
+    if (pub_imu_corrected_.getNumSubscribers() != 0)
+    {
+        if (sensor_ptr_->getProblem()->getDim() == 3)
+        {
+            // current orientation
+            auto q = Eigen::Quaterniond(Eigen::Vector4d(sensor_ptr_->getProblem()->getState("O")['O']));
+
+            // correct bias
+            Eigen::Vector6d data_corrected = data - bias;
+
+            // remove gravity
+            data_corrected.head<3>() += q.conjugate() * gravity();
+
+            // fill and publish
+            sensor_msgs::Imu imu_corrected = *msg;
+
+            imu_corrected.linear_acceleration.x = data_corrected(0);
+            imu_corrected.linear_acceleration.y = data_corrected(1);
+            imu_corrected.linear_acceleration.z = data_corrected(2);
+            imu_corrected.angular_velocity.x    = data_corrected(3);
+            imu_corrected.angular_velocity.y    = data_corrected(4);
+            imu_corrected.angular_velocity.z    = data_corrected(5);
+
+            pub_imu_corrected_.publish(imu_corrected);
+        }
+        else
+        {
+            // fill and publish
+            sensor_msgs::Imu imu_corrected = *msg;
+
+            imu_corrected.linear_acceleration.x = data(0) - bias(0);
+            imu_corrected.linear_acceleration.y = data(1) - bias(1);
+            imu_corrected.linear_acceleration.z = data(2);
+            imu_corrected.angular_velocity.x    = data(3);
+            imu_corrected.angular_velocity.y    = data(4);
+            imu_corrected.angular_velocity.z    = data(5) - bias(2);
+
+            pub_imu_corrected_.publish(imu_corrected);
+        }
+    }
+    // Publish IMU message with axis remapping
+    if (pub_imu_remapped_.getNumSubscribers() != 0)
+    {
+        // fill and publish
+        sensor_msgs::Imu imu_remapped = *msg;
+        if(imu_remapped.header.frame_id == "") 
+            imu_remapped.header.frame_id = "imu";
+
+        imu_remapped.linear_acceleration.x = data(0);
+        imu_remapped.linear_acceleration.y = data(1);
+        imu_remapped.linear_acceleration.z = data(2);
+        imu_remapped.angular_velocity.x    = data(3);
+        imu_remapped.angular_velocity.y    = data(4);
+        imu_remapped.angular_velocity.z    = data(5);
+
+        pub_imu_remapped_.publish(imu_remapped);
+    }
+    // Publish current relative pose w.r.t. origin pose
+    if (pub_pose_from_origin_.getNumSubscribers() != 0)
+    {
+        // initialize processor_motion pointer
+        if (not processor_motion_ptr_)
+            for (auto proc : sensor_ptr_->getProcessorList())
+            {
+                processor_motion_ptr_ = std::dynamic_pointer_cast<ProcessorMotion>(proc);
+                if (processor_motion_ptr_ != nullptr)
+                    break;
+            }
+            
+        // abort if no processor_motion (strange...)
+        if (not processor_motion_ptr_)
+        {
+            WOLF_WARN("SubscriberImu: No processor of type ProcessorMotion in the SensorImu...?");
+            return;
+        }
+
+        // still no origin?
+        if (not processor_motion_ptr_->getOrigin())
+            return;
+
+        // get current and origin states
+        auto origin_ts = processor_motion_ptr_->getOrigin()->getTimeStamp();
+        auto origin_state = processor_motion_ptr_->getOrigin()->getFrame()->getState("PO");
+        auto current_state = processor_motion_ptr_->getState("PO");
+        auto current_ts = processor_motion_ptr_->getTimeStamp();
+        if (not origin_state.includesStructure("PO") or not current_state.includesStructure("PO"))
+            return;
+
+        // Fill message
+        geometry_msgs::PoseStamped pose_msg;
+        auto dt = current_ts - origin_ts;
+        pose_msg.header.stamp = ros::Time(dt);
+
+        // 3D
+        if(sensor_ptr_->getProblem()->getDim() == 3)
+        {
+            auto pose_from_origin = SE3::between(origin_state.vector("PO"), current_state.vector("PO"));
+
+            pose_msg.pose.position.x    = pose_from_origin(0);
+            pose_msg.pose.position.y    = pose_from_origin(1);
+            pose_msg.pose.position.z    = pose_from_origin(2);
+            pose_msg.pose.orientation.x = pose_from_origin(3);
+            pose_msg.pose.orientation.y = pose_from_origin(4);
+            pose_msg.pose.orientation.z = pose_from_origin(5);
+            pose_msg.pose.orientation.w = pose_from_origin(6);
+        }
+        // 2D
+        else
+        {
+            auto pose_from_origin = SE2::between(origin_state.vector("PO"), current_state.vector("PO"));
+
+            auto q_from_origin = Eigen::Quaterniond(Eigen::AngleAxisd(pose_from_origin(2),
+                                                    Eigen::Vector3d::UnitZ()));
+
+            pose_msg.pose.position.x    = pose_from_origin(0);
+            pose_msg.pose.position.y    = pose_from_origin(1);
+            pose_msg.pose.position.z    = 0;
+            pose_msg.pose.orientation.x = q_from_origin.x();
+            pose_msg.pose.orientation.y = q_from_origin.y();
+            pose_msg.pose.orientation.z = q_from_origin.z();
+            pose_msg.pose.orientation.w = q_from_origin.w();
+        }
+
+        pub_pose_from_origin_.publish(pose_msg);
+    }
+    // Publish gravity projection onto sloped 2D plane
+    if (pub_slope_.getNumSubscribers() != 0)
+    {
+        double slope, orientation;
+
+        if (non_orthogonal_gravity_)
+        {
+            Eigen::Vector2d g_local_xy = std::static_pointer_cast<SensorImu2d>(sensor_ptr_)->getStateVector("G");
+            slope = asin(g_local_xy.norm() / gravity().norm());
+            orientation = atan2(g_local_xy(1),g_local_xy(0));
+        }
+
+        else if (std::dynamic_pointer_cast<SensorImu>(sensor_ptr_) != nullptr)
+        {
+            // auto q_frame = Eigen::Quaterniond(Eigen::Vector4d(sensor_ptr_->getProblem()->getTrajectory()->getFirstFrame()->getStateVector("O")));
+            // auto g_local_xy = (q_frame.conjugate() * gravity()).head<2>();
+            // slope = asin(g_local_xy.norm() / gravity().norm());
+            // orientation = atan2(g_local_xy(1),g_local_xy(0));
+
+            slope = 0;
+            auto n_frames = 0;
+            for (auto frm_it : sensor_ptr_->getProblem()->getTrajectory()->getFrameMap())
+            {
+                auto q_frame = Eigen::Quaterniond(Eigen::Vector4d(frm_it.second->getStateVector("O")));
+                auto g_local_xy = (q_frame.conjugate() * gravity()).head<2>();
+
+                slope += asin(g_local_xy.norm() / gravity().norm());
+
+                if (n_frames == 0)
+                    orientation = atan2(g_local_xy(1),g_local_xy(0));
+                
+                n_frames++;
+            }
+            slope /= n_frames;
+        }
+        else
+            return;
+
+        // Fill msg
+        geometry_msgs::Vector3Stamped g_msg;
+        g_msg.header.stamp = msg->header.stamp;
+        g_msg.header.frame_id = "/map";
+        g_msg.vector.x = slope;
+        g_msg.vector.y = orientation;
+        g_msg.vector.z = 0;
+
+        // publish
+        pub_slope_.publish(g_msg);
+    }
+}
diff --git a/src/subscriber_imu_enableable.cpp b/src/subscriber_imu_enableable.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..4daa5895eb0adbb3baf21e94ffac707d85bb1fdc
--- /dev/null
+++ b/src/subscriber_imu_enableable.cpp
@@ -0,0 +1,204 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
+#include "../include/subscriber_imu_enableable.h"
+
+#include <core/factor/factor_relative_pose_3d.h>
+#include <core/factor/factor_relative_pose_2d.h>
+#include "core/capture/capture_void.h"
+#include "core/processor/processor_motion.h"
+
+namespace wolf
+{
+
+// Constructor
+SubscriberImuEnableable::SubscriberImuEnableable(const std::string& _unique_name,
+                                               const ParamsServer& _server,
+                                               const SensorBasePtr _sensor_ptr) :
+        SubscriberImu(_unique_name, _server, _sensor_ptr),
+        enabled_(false),
+        last_frame_(nullptr),
+        filtered_msg_(boost::make_shared<sensor_msgs::Imu>()),
+        filtered_vector_(Eigen::Vector6d::Zero())
+{
+    topic_enable_           = _server.getParam<std::string>(prefix_ + "/topic_enable");
+    duration_init_static_   = _server.getParam<double>(prefix_ + "/static_init_duration");
+    lowpass_filter_         = _server.getParam<bool>(prefix_ + "/lowpass_filter");
+    if (lowpass_filter_)
+    {
+        double fc = _server.getParam<double>(prefix_ + "/lowpass_cutoff_freq");
+        double dt = _server.getParam<double>(prefix_ + "/dt");
+        lowpass_alpha_ = (2 * M_PI * dt * fc) / (2 * M_PI * dt * fc + 1);
+    }
+
+    for (auto proc : sensor_ptr_->getProcessorList())
+    {
+        processor_motion_ = std::dynamic_pointer_cast<ProcessorMotion>(proc);
+
+        if (processor_motion_)
+            break;
+    }
+    assert(processor_motion_ && "SubscriberImuEnableable: no processorMotion was found in the sensor IMU processor list");
+}
+
+void SubscriberImuEnableable::initialize(ros::NodeHandle& nh, const std::string& topic)
+{
+    SubscriberImu::initialize(nh,topic);
+    sub_        = nh.subscribe(topic, 10, &SubscriberImuEnableable::callback, this);
+    enable_sub_ = nh.subscribe(topic_enable_, 1, &SubscriberImuEnableable::enableCallback, this);
+
+    if (lowpass_filter_)
+        pub_filtered_imu_ = nh.advertise<sensor_msgs::Imu>(topic + "_imu_filtered", 1);
+}
+
+void SubscriberImuEnableable::callback(const sensor_msgs::Imu::ConstPtr& msg)
+{
+    // LOW PASS FILTER
+    if (lowpass_filter_)
+    {
+        Eigen::Vector6d input_vector;
+
+        input_vector << msg->angular_velocity.x,
+                        msg->angular_velocity.y,
+                        msg->angular_velocity.z,
+                        msg->linear_acceleration.x,
+                        msg->linear_acceleration.y,
+                        msg->linear_acceleration.z;
+
+        // filter
+        if (filtered_vector_.isZero(1e-9)) // first time
+            filtered_vector_ = input_vector;
+        else
+            filtered_vector_ = lowpass_alpha_ * input_vector + (1 - lowpass_alpha_) * filtered_vector_;
+
+        // store output
+        *filtered_msg_ = *msg;
+        filtered_msg_->angular_velocity.x       = filtered_vector_(0);
+        filtered_msg_->angular_velocity.y       = filtered_vector_(1);
+        filtered_msg_->angular_velocity.z       = filtered_vector_(2);
+        filtered_msg_->linear_acceleration.x    = filtered_vector_(3);
+        filtered_msg_->linear_acceleration.y    = filtered_vector_(4);
+        filtered_msg_->linear_acceleration.z    = filtered_vector_(5);
+
+        // publish
+        pub_filtered_imu_.publish(filtered_msg_);
+    }
+
+    // PROCESS DATA
+    if (enabled_)
+    {
+        if (lowpass_filter_)
+            SubscriberImu::callback(filtered_msg_);
+        else
+            SubscriberImu::callback(msg);
+
+        /* STATIC INITIALIZATION
+         * impose zero velocity and same position & orientation to the frames within the first 'duration_init_static_' seconds
+         */
+        if (duration_init_static_ > 0)
+        {
+            // store first frame
+            if (not last_frame_)
+            {
+                last_frame_ = processor_motion_->getOrigin()->getFrame();
+                first_ts_ = last_frame_->getTimeStamp();
+
+                // impose zero velocity
+                last_frame_->getV()->setZero();
+                last_frame_->getV()->fix();
+
+                // impose zero odometry
+                processor_motion_->setOdometry(sensor_ptr_->getProblem()->stateZero(processor_motion_->getStateStructure()));
+            }
+            else
+            {
+                assert(processor_motion_->getOrigin() && "SubscriberImuEnableable::callback: nullptr origin");
+                assert(processor_motion_->getOrigin()->getFrame() && "SubscriberImuEnableable::callback: nullptr origin frame");
+
+                // new frame
+                if (last_frame_ != processor_motion_->getOrigin()->getFrame())
+                {
+                    // within the specified init duration?
+                    if (processor_motion_->getOrigin()->getFrame()->getTimeStamp() - first_ts_  < duration_init_static_)
+                    {
+                        last_frame_ = processor_motion_->getOrigin()->getFrame();
+
+                        // impose zero velocity
+                        last_frame_->getV()->setZero();
+                        last_frame_->getV()->fix();
+                        
+                        // impose zero odometry
+                        processor_motion_->setOdometry(sensor_ptr_->getProblem()->stateZero(processor_motion_->getStateStructure()));
+
+                        // add zero displacement and rotation capture & feature & factor with all previous frames
+                        assert(sensor_ptr_->getProblem());
+                        auto size = sensor_ptr_->getProblem()->getDim() == 3 ? 7:3;
+                        auto cov_size = sensor_ptr_->getProblem()->getDim() == 3 ? 6:3;
+                        Eigen::VectorXd zero_motion = Eigen::VectorXd::Zero(size);
+                        if(sensor_ptr_->getProblem()->getDim() == 3) 
+                          zero_motion.tail<4>() = Eigen::Quaterniond::Identity().coeffs();
+                        for (auto frm_pair =  sensor_ptr_->getProblem()->getTrajectory()->begin();
+                             frm_pair != sensor_ptr_->getProblem()->getTrajectory()->end();
+                             frm_pair++)
+                        {
+                            if (frm_pair->second == last_frame_)
+                                break;
+                            auto capture_zero = CaptureBase::emplace<CaptureVoid>(last_frame_, last_frame_->getTimeStamp(), nullptr);
+                            auto feature_zero = FeatureBase::emplace<FeatureBase>(capture_zero,
+                                                                                  "FeatureZeroOdom",
+                                                                                  zero_motion,
+                                                                                  Eigen::MatrixXd::Identity(cov_size,cov_size) * 0.01);
+                            if(sensor_ptr_->getProblem()->getDim() == 3) 
+                              FactorBase::emplace<FactorRelativePose3d>(feature_zero,
+                                                                        feature_zero,
+                                                                        frm_pair->second,
+                                                                        nullptr,
+                                                                        false,
+                                                                        TOP_MOTION);
+                            else
+                              FactorBase::emplace<FactorRelativePose2d>(feature_zero,
+                                                                        feature_zero,
+                                                                        frm_pair->second,
+                                                                        nullptr,
+                                                                        false,
+                                                                        TOP_MOTION);
+
+                        }
+                    }
+                    // static initialization ended
+                    else
+                        duration_init_static_ = -1;
+                }
+            }
+        }
+    }
+}
+
+void SubscriberImuEnableable::enableCallback(const std_msgs::Bool::ConstPtr& msg)
+{
+    if (!enabled_ and msg->data)
+        ROS_INFO("IMU has been enabled!");
+    if (enabled_ and !msg->data)
+        ROS_INFO("IMU has been disabled!");
+    enabled_ = msg->data;
+}
+
+}
diff --git a/src/wolf_subscriber_imu.cpp b/src/wolf_subscriber_imu.cpp
deleted file mode 100644
index c406ff788ad15d7f2d801071aa49922da2fc19c6..0000000000000000000000000000000000000000
--- a/src/wolf_subscriber_imu.cpp
+++ /dev/null
@@ -1,34 +0,0 @@
-#include "../include/wolf_subscriber_imu.h"
-
-using namespace wolf;
-
-// Constructor
-WolfSubscriberImu::WolfSubscriberImu(const SensorBasePtr& sensor_ptr) :
-        Subscriber(sensor_ptr)
-{
-}
-
-void WolfSubscriberImu::initSubscriber(ros::NodeHandle& nh, const std::string& topic)
-{
-    sub_     = nh.subscribe(topic, 1, &WolfSubscriberImu::callback, this);
-}
-
-void WolfSubscriberImu::callback(const sensor_msgs::Imu::ConstPtr& msg)
-{
-    ROS_INFO("callback IMU!");
-//    if (last_nav_ptr_==nullptr)
-//        return;
-//
-//    GNSSUtils::ObservationsPtr obs_ptr = std::make_shared<GNSSUtils::Observations>();
-//    GNSSUtils::fillObservation(*obs_ptr, msg);
-//    CaptureGnssPtr new_capture = std::make_shared<CaptureGnss>(TimeStamp(msg->header.stamp.sec, msg->header.stamp.nsec),
-//                                                               sensor_ptr_,
-//                                                               obs_ptr,
-//                                                               last_nav_ptr_);
-//    new_capture->process();
-}
-
-std::shared_ptr<WolfSubscriber> WolfSubscriberImu::create(const std::string& _unique_name, const ParamsServer& _params, const SensorBasePtr _sensor_ptr)
-{
-    return std::make_shared<WolfSubscriberImu>(_sensor_ptr);
-}