学术
基于框架理论的非正交小波降噪方法研究
免费下载
[全文大小：135 K]
林刚[1,2] 王宏军[1]
[1]西安航空职业技术学院电工系,陕西西安710089 [2]中国飞行试验研究院,陕西西安710089
国际标准刊号：ISSN 1000-7180
国内统一刊号：CN 61-1123
摘 要:
将正交小波降噪的阈值处理方法引入到非正交小波降噪过程中．提出了Hilbert空间中基于框架的非正交小波阈值降噪方法。该方法由于对尺度和时间的冗余抽样，所以能将信号尺度特征和锐变位置更精确定位，成为信号降噪处理的一个有效途径。[著者文摘]
文章出处:
《微电子学与计算机》-2007年24卷11期 -92-94页
Microelectronics & Computer
分 类 号:
文献标识码:
A
文章编号:
1000-7180（2007）11-0092-03
[参考文献]
Studying of Non-orthogonal Wavelet Denoising Method Based on the Frame Theory
LIN Gang, WANG Hong-jun （1 Department of Electrician, Xi＇an Aviation Vocational Technology Institute, Xi＇an 710089, China; 2 China Flight Test Establishment, Xi＇an 710089, China）
Abstract:
Using the threshold processing method of orthogonal wavelet in non-orthogonal wavelet denoising process, we proposed the non-orthogonal wavelet thresholding denoising algorithm based on frame theory in Hilbert spaces, and because the redundancy sample of the scale and time, we believe the algorithm can get a more accurate localization to the signal＇s scale characterization and the position of acute change, and it will be an effect way of one signal＇s denoising process.[著者文摘]
Key words:
frame theory; non-orthogonal wavelet; denoising
收稿日期: 2006-11-12
更多评论>>文章评论
更多>>免费文章
cqvip.com