小波包变换分析信号的MATLAB程序 小波分析信号去噪 小波分解与重构经典程序-Wavelet packet transform analysis of signals in MATLAB program Signal de-noising wavelet decomposition wavelet analysis and reconstruction classic program

基于小波包的信号瞬态成分检测与提取方法及其应用,提出基于小波包分解特征表示和瞬态特征重 建方法并应用于汽车变速器齿轮的故障诊断,结果表明基于小波包分解的信号特征表示方法能有效检测信号中瞬 态成分的存在,瞬态成分的重建结果有效地表示了齿轮的故障状态。 -The detection and extraction of signal transients through wavelet packets decomposition are studied and signal trans

本文件调用matlab小波分析包，可以实现db4等小波函数类型的分解和重置，并进行原始信号和重构信号的误差比较！-This document calling matlab wavelet analysis package, you can achieve db4 wavelet function, such as the type of decomposition and reset and reconstruct the original signal and the error signal