抑制载波型差分相位调制，使用高阶累积量对MPSK信号进行调制识别，独立成分分析算法降低原始数据噪声，使用matlab实现智能预测控制算法，随机调制信号下的模拟ppm。- Suppressed carrier type differential phase modulation, Using high-order cumulants of MPSK signal modulation recognition, Independent component analysis algorithm reduces the raw data noise, Use matlab intelligent predictive control algorithm, Random ppm modulated analog signal unde.