摘要
通过LabVIEW的编程环境实现了Db4小波对信号的分解和重构,采用小波软阈值去噪法对信号去噪,并将其与Butterworth低通滤波器滤波效果进行了比较。试验证明小波软阈值去噪是一种有效的滤波方法。
This paperis realized signal decomposition and reconstruction using Db4 wavelet in LabVIEW programming environment. Then the author adopts wavelet soft - threshold denoising method to filter the noise in signal and compares with the filtering effect which is ob- tained by Butterworth low pass filter. Experimentation shows that it is an effective method to reduce the noise in signal by wavelet soft - threshold Denoising.
出处
《技术与市场》
2013年第5期51-52,54,共3页
Technology and Market
