关于调幅解调电路的探讨

The Discussion about the Modulation and Demodulation

本文讨论了一种新的调幅信号的解调方法,即不需要载波信号,将调幅信号进行平方后,再将它滤波分频等,最后解调出调制信号。并且详细给出了此种解调方法的原理图和仿真结果。证明了此种方法对单音频调制信号的解调实现起来简捷可靠。

This article present one new demodulation method for Amplitude modulation. The modulation signal is squared, filtered and divided. And no local carrier wave taken involved, This article describes the method＇s theory and simulation result in detail. This demodulation method is very simple to the monochromatic DSB signal.