小波滤波的频率结构分析及其在表面形貌分析中的应用

Analysis of Spectrum Structcre with Wavelet Filtering and ItsApplication in Mechanical Surface Topography

分析论证了Ｍａｌａｔ快速小波变换和小波包数据分析的频率结构关系，为小波方法在工程中的应用提供了理论依据，并给出了小波变换及其频率结构关系在表面形貌分析中的应用方法和技巧．

オhe Mallat′s alorithm is the same important in wavelets analysis as Fast Fourier Transform(FFT) in Fourier analysis.This paper analyses and proves the spectrum structure of data separating with Mallat′s alorithm. It provides the theory basis for applications.This paper also gives the methods shills of application in mechanical surface topography.