Demodulation algorithm for EBPSK based on cyclic spectrum characteristic
Zhao Zhi-yong · Chinese Journal of Radio Science · 2010
This paper introduced the signal model and cycle spectrum characteristic of extended binary phase shift keying(EBPSK) signals.By extending matched filtering theory of stationary signals,a new demodulation algorithm for EBPSK based on cycle spectrum characteristic is presented.Receiver block diagram of EBPSK according to the algorithm is proposed,and the performance of the demodulation algorithm is analyzed.Simulation results demonstrate the validity of the algorithm.Theoretical and simulation results show that the demodulation algorithm for EBPSK based on cycle spectrum can separate EBPSK signals from noise which is overlapped with them in both time and frequency domain since the algorithm can make full use of the difference between EBPSK signals and noise in cycle frequency domain.And the results also show that the demodulation algorithm for EBPSK presented in this paper brings forward a valuable reference for the application of EBPSK in practice.