db6小波分解upcoef重构与wrcoef重构的对比，可换成任意输入-db6 decomposition upcoef reconstruction compared with wrcoef reconstruction can be replaced by any input

采样频率 fs=10000 轴承外环故障信号 fid=fopen( bearingout.dat , r ) 故障 N=1024 xdata=fread(fid,N, int16 ) fclose(fid) xdata=(xdata-mean(xdata))/std(xdata,1) 时域波形 figure(1) plot(1:N,xdata) xlabel( 时间

一维小波单支重构函数，一维小波系数直接重构函数-Single one-dimensional reconstruction of wavelet functions, the direct reconstruction of one-dimensional wavelet function