电子科技2012，Vol.25Issue(11)：31-34,4.
基于改进阈值函数和自适应阈值的小波去噪方法
Wavelet Denoising Basaed on Improved Threshold Function and Adaptive Threshold
周帅 1左东广1
作者信息
- 1. 第二炮兵工程大学1系,陕西西安710025
- 折叠
摘要
Abstract
According to the theory of wavelet threshold denoising,a signal denoising method based on improved threshold function and adaptive threshold is put forward,which incorporates the advantages of hard and soft threshold functions,and makes up to some extent for the defects of traditional threshold denoising methods.The introduction of adaptive thresholding algorithm effectively saves the need to using the same threshold on each scale.Experimental results show that this method improves the signal-to-noise ratio and the denoising effect by overcoming the disadvantages of the poor denoising effect of hard thresholding and the distortion caused by soft threshold method.关键词
改进阈值函数/自适应阈值/小波去噪/信噪比Key words
improved thresholding function/adaptive threshold/wavelet denoising/signal-to-noise ratio分类
信息技术与安全科学引用本文复制引用
周帅,左东广..基于改进阈值函数和自适应阈值的小波去噪方法[J].电子科技,2012,25(11):31-34,4.
