旋转机械二维全息谱计算，FIR 底通和带通滤波器和IIR 底通和带通滤波器，针对EMD方法的不足,本程序的性能已经达到较高水平，采用累计贡献率的方法，毕业设计有用，用于特征降维，特征融合，相关分析等。- Rotating machinery 2-d holographic spectrum calculation, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, For lack of EMD, The performance of the program has reached a high level, The method of cumulative contribution rate Graduation useful For feature reduction, feature fusion, correlation analysis.