Influences of delay unit on bite error rate in the BDPSK phase comparing demodulation

摘要

The relative theory of improved form BDPSK modulation is analyzed. The discussion focuses on the influences of system performance made by delay module during the process of BDPSK differential coherent demodulation. The system demodulation expression between precision delay and error delay is compared. Through improving demodulation system, theoretically, the accuracy of delay units is improved. The bite error rate is reduced. The system's ability to anti-jamming is enhanced.