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二进制移频键控信号的差分检测分析表明:通过对延迟时间间隔的适当选择,二进制移频键控差分检测的误码率可以等于在调制指数h满足h≥0.5前提下的二进制差分移相键控的误码率。若h>0.5,分析表明:二进制移频键控的差分检测功能比差分移相键控要差一些。
The differential detection and analysis of the binary frequency-shifted keying signal shows that the bit error rate of the binary frequency-shifted keying differential detection can be equal to the binary differential phase shift key with the modulation index h satisfying h≥0.5 through proper selection of the delay time interval Controlled bit error rate. If h> 0.5, the analysis shows that the differential detection function of binary FSK is worse than that of differential phase-shift keying.