摘要
在信号处理中,噪声的存在往往影响分析的准确度,小波变换多分辨分析的特性使得它成为一种很好的滤噪方法。本文通过分析小波滤波的思想、计算过程以及幅频特性等问题,从而达到小波滤波的目的,并通过仿真来验证小波滤波的有效性。
In the signal processing ,the noise often degrades the accuracy of the result.Wavelet transforms are multiresolution decompositions that can be used for signal denoising.This paper analyses the idea of wavelet transforms,the process of calculation and the influence of its frequency response,so that wavelet transforms can reduce the noise from the useful signal. The simulation results show that the wavelet transforms are effective.
出处
《科技广场》
2009年第3期177-179,共3页
Science Mosaic
关键词
小波变换
小波滤波
信号处理
Wavelet Transforms
Wavelet Filter
Signal Processing
