随机信号的统计特性测试,均值、方差，相关函数（包括自相关、互相关函数）、频谱及功率谱密度算法.-The statistical properties of random signal test, mean, variance, correlation function (including autocorrelation, cross-correlation function), spectrum and power spectral density algorithms.

对采集的信号进行EMD分解，并对相关性，方差贡献率的一些比较处理-On the acquisition of the signal EMD decomposition, and the correlation, the variance contribution rate of some of the comparison processing