The performances and characteristiss of the zero crossing digital demodulation is ana lysed through the comparison of various ways of Fsk signal digital demodulation. And ideal conclusion is reached.

• 对各种频移键控信号的数字解调方法进行了研究和比较，并重点分析了零交点数字解调法的性能特征，最后得出了一个最佳结论.