基于互功率谱的时延估计，多抽样率信号处理，应用小区域方差对比，程序简单，调试通过可以使用，最大信噪比的独立分量分析算法，均值便宜跟踪的示例，随机调制信号下的模拟ppm，包括AHP，因子分析，回归分析，聚类分析。- Based on the time delay estimation of power spectrum, Multirate signal processing, Application of small area variance comparison, simple procedures, Debugging can be used, SNR largest independent component analysis algorithm, Example tracking mean cheap, Random ppm modulated analog signal under Including AHP, factor analysis, regression analysis, cluster analysis.