Kalman filtering of GPS signals for target tracking application
Résumé
Considering the GPS link as a passive sensor for ocean monitoring, we study the possibility of tracking the GPS signal reflexion footprints on sea surface to improve the acquisition of this signal. As an analogy with the classical problem of moving targets Radar tracking, we develop a tracking algorithm based on Kalman filtering. Our study is based on calculated and measured values of Doppler frequency shift and time delay.