Furthermore , in order to supplement multi - object tt & c capability of new generation space tt & c system , gmsk modulation is recommended by ccsds because of its preferable frequency speciality and miscode performance . the thesis analyzed characteristic and demodulation realized of gmsk signal . attempting to design a universal multi - mode demodulator of bpsk , qpsk and gmsk , the thesis studied 本文分析了gmsk信号的特点及解调实现，试图设计一种bpsk 、 qpsk 、 gmsk通用的多模式解调器，因而研究了调制识别技术，分析了以决策论为基础的三种信号的调制识别方法，并提出了基于人工神经网络的调制识别方法。
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