供做算法研究人员参考，多抽样率信号处理，正确率可以达到98％，一种噪声辅助数据分析方法,Matlab实现界面友好，对信号进行频谱分析及滤波。-Algorithm for researchers to do reference, Multirate signal processing, Accuracy can reach 98 , A noise auxiliary data analysis method, Matlab to achieve user-friendly, The signal