小波多分辨率分析在激光扫描回波信号处理中的应用

Application of wavelet multi-resolution analysis in echo signal processing of the laser rapid scanning

小波变换具有表征信号局部特征的能力,适于分析信号中的瞬态和奇异现象,并可展示其成份,所以采用小波多分辨率分析方法对激光回波弱信号进行处理。利用这种方法,可以有效消除噪声,提取有用的信号。结果证明小波多分辨率分析对于激光回波信号处理十分有效,提高了信号分析的准确性。

Wavelet transform has the ability of denoting local signal characteristics, so it is often use to analyze instantaneous and fantastic phenomena. In this method, noise can be eliminated and effective signals can be picked up. When applying the wavelet transform to the experiments, a satisfying result was obtained. With this method, the ability of edge detection can be greatly improved.