通过对数据滤波来进行对静态效应的消噪过程，本代码使用了空间滤波、组合滤波、中值滤波等方法进行对比。-Through data filtering to eliminate noise of static effects of the process, the code uses the spatial filtering, a combination of filtering, median filtering and other methods were compared.

用于信号特征提取、信号消噪，对信号进行频谱分析及滤波，数学方法是部分子空间法。- For feature extraction, signal de-noising, The signal spectral analysis and filtering, Mathematics is part of the subspace.