The traditional digital signal demodulation method that realizes more complex has the problems of carrier recovery, symbol synchronization and so on.

传统的数字信号解调方法存在着载波恢复、符号同步等问题，实现起来较为复杂。

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A digital demodulation method of the FSK Signal is presented when its frequency parameters are unknown.

提出了一种在未知信号频率条件下的FSK信号数字化解调方法。

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The principle of digital modulated signal is analyzed in this paper. Based on instant character parameters, a kind of digital communication signal demodulation method is established.

分析了信号数字调制的基本原理，提出一种基于信号瞬时特征参数的数字通信信号解调方法。

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