Research of High Symbol Rate π/4-DQPSK Signal's Digital Demodulation

摘要

This paper presents a new algorithm used in_the real-time digital demodulation of High Code Rate π/4-DQPSK signal by digital frequency measurement. The simulation results of the algorithm are also given. This algorithm has high efficiency and low error code ratio. It can restrain Doppler frequency and be realized easily by digital signal processor.