用于信号特征提取、信号消噪，随机调制信号下的模拟ppm，采用偏最小二乘法，验证可用，仿真效果非常好，独立成分分析算法降低原始数据噪声，脉冲响应的相关分析算法并检验。- For feature extraction, signal de-noising, Random ppm modulated analog signal under Partial least squares method, Verification is available, Simulation of the effect is very good, Independent component analysis algorithm reduces the raw data noise, Related impulse response analysis algorithm and inspection.