简单介绍了CPFSK的基本原理，对其调制和解调算法进行了讨论．通过对过零检测、FFT频谱幅值 法和非相干解调算法的比较，可以看出采用非相干解调方法具有较好的误码特性-A brief introduction to the basic principle of CPFSK modulation and demodulation algorithm discussed. Can be seen that the use of non-coherent demodulation method ha