Zu-Zhi Shang

Delay and Doppler precompensation for LEO satellites using fused adaptive strong tracking filtering

Low Earth orbit (LEO) satellite links are sensitive to ephemeris errors because fast geometry changes directly affect propagation delay and Doppler frequency. This paper proposes an orbit prediction-assisted precompensation scheme based on adaptive strong tracking Kalman filtering with a Keplerian constraint (ASTKF-K)....