小波变换的Mallat算法在LabVIEW中的实现

Realizaltion of wavelet transform's algorithm of Mailat in LabVIEW

小波变换是信号分析处理的一种有效手段,虚拟仪器代表着目前测试仪器领域的发展方向,LabVIEW语言是一种功能强大的虚拟仪器开发平台。本文分析了小波变换的Mallat算法原理,介绍了LabVIEW环境下小波变换快速算法的实现,将Mallat算法引入到LabVIEW环境中,扩展了LabVIEW的小波分析功能,并对LabVIEW下的Mallat算法进行了仿真分析。

Wavelet transform is an effective means to study signal in time-frequency domain, Virtual instrument has taken the lead of the profession of test instrument, LabVIEW is a kind of developing flat of virtual instrument with powerful function. The principle of wavelet transform＇s algorithm of Mallat is discussed in this paper, and then the realization of fast algorithm of wavelet transform is introduced. The Mallat algorithm is realized in LabVIEW language in the paper, this development work expends the function library of LabVIEW, an experiment is made later by using this method under LabVIEW.