提升小波变换的MATLAB程序，适合于故障诊断中的信号分析和处理-Lifting Wavelet Transform MATLAB, signal analysis and processing for fault diagnosis

语音信号小波去噪 在小波基 db3 下进行一维离散小波反变换 对输出信号抽样点值进行归一化处理-Speech signal wavelet de-noising in wavelet bases ' db3' one-dimensional discrete wavelet transform on the output signal sample point value normalization