基于框架理论的非正交小波降噪方法研究  

Studying of Non-orthogonal Wavelet Denoising Method Based on the Frame Theory

作　　者：林刚[1] 王宏军[1] 

机构地区：[1]西安航空职业技术学院电工系

出　　处：《微电子学与计算机》2007年第11期92-94,共3页Microelectronics & Computer

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。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.

关 键 词：框架理论 非正交小波 降噪 

分 类 号：TN011[电子电信—物理电子学]