π-TFSK Eime Erequency Phase Msolulation Signal and its Modeling

In mobile communications,especially for fast moving data transmitting,the transmitting and symbol error rate characteristics will be badly destroyed owing to the fading created by fast moving and interferences caused by multi-path propagation.To eliminate the fading and multi-path delay,Time-Frequency-Phase Modulation(TFPM) has been proposed.This paper mainly discusses the Time-Frequency-Phase Modulation signal and its auto-correlation function.The mathematical model of π-TFSK is also established.