Real-Time Measurement Method of Doppler Based on GPS Carrier Signals


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According to Doppler effect of satellite on the time synchronization technology between satellite and the ground station, a real-time measurement method of Doppler is proposed based on GPS carrier signals. Using Doppler observations from GPS receiver, the method can real-timely measure Doppler frequency shift of GPS including dynamic Doppler and media Doppler whose error can be timely modified in the receiver end. Simulation results show that the frequency shift caused by dynamic Doppler, a main influencing factor in the course of transmission of time-frequency signal by GPS satellite, is between plus or minus several thousands Hz. Comparing to traditional measurement method of Doppler, the method makes it possible to fast track phase of signal in large dynamic range in synchronous technology.



Edited by:

Chunliang Zhang and Paul P. Lin




S. F. Dong et al., "Real-Time Measurement Method of Doppler Based on GPS Carrier Signals", Applied Mechanics and Materials, Vols. 226-228, pp. 2050-2055, 2012

Online since:

November 2012




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