This paper presents a method for determining the error probability of MDPSK communication systems with differential phase detection on Rayleigh fading channel
and the analytic expression of symbol error rate is derived.The effects of Rayleigh fading
time-selective fading and white noise on the performance of MDPSK systems have been considered.When the form of fading spectrum is assumed to be Gaussian or rectangular
the symbol error rate of BDPSK
QDPSK and ODPSK systems has been numerical calculated