Doppler Frequency-shift Based on Ephemeris of Satellite

The satellite orbit parameters in the ephemeris and location of land receiver were studied.Universal mathematic models of Doppler frequency-shift were deduced using geometric vector.The Doppler frequency between the satellites and the land receivers and the relations of Doppler frequency-shift and the elevation angle were analyzed in low,middle and high orbits,and algorithm models were constructed. Simulation results show the effectiveness and universality of the models,which can be used for the estimation and compensation of Doppler frequency-shift.