Study on Highly-Accurate Speed Measurement for DS-FH/MSK TT&C

Coarsely estimation method based on match filter in combination with FFT is proposed,thus to solve the problem of large Doppler shifts in the course of DS-FH/MSK signal acquisition,and with FFT-based spectrum zoom frequency measurement,implement accurate estimation.The method in combination with the merit of estimation and compensation,could reduce the time and raise the precision,while the Doppler frequency is emplyed for speed measurement.Simulation result indicates that the proposed method could reduce resource consumption,implement the fast acquisition and the highly-accurate estimation and speed measurement.