Resolve "TDCP batch implementation"

Closes #15 (closed)

include/gnss_utils/utils/satellite.h

@@ -19,12 +19,16 @@ namespace GnssUtils
     class Observations;
     class Navigation;
 
-    double computeSatElevation(const Eigen::Vector3d& receiver_ecef, const Eigen::Vector3d& sat_ecef);
-
     Satellites computeSatellites(const Observations& obs,
                                  const Navigation&   nav,
                                  const int&          eph_opt); // see rtklib.h L396
 
+    Eigen::Vector2d computeAzel(const Eigen::Vector3d& sat_ecef, const Eigen::Vector3d& receiver_ecef);
+
+    Eigen::Vector2d computeAzel(const Satellite& sat, const Eigen::Vector3d& receiver_ecef);
+
+    Azels computeAzels(const Satellites& sats, const Eigen::Vector3d& receiver_ecef);
+
     struct Satellite
     {
         int sys;