Real-Time Measurement Method of Doppler Based on GPS Carrier Signals
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.
Doppler Frequency Shift Dynamic Doppler GPS Carrier Signal Error Compensation
Shao Feng Dong Bao Qiang DU Wei Zhou
Department of Measurement and Instrument,Xidian University,Xian,710071,China College of Electric and Information Engineering,Zhengzhou University of Light Industry,Zhengzhou,450
国际会议
上海
英文
2050-2055
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）