%0 Journal Article
%T Combined Wavelet Packets and Best Bases<br>混合小波包与最佳基
%A CHEN Yu-yu
%A CHEN Yu-yu
%A WANG Guo-yi
%A <br>陈玉宇
%A 张　钹
%A 王国意
%J 软件学报
%D 1998
%I 
%X In this paper, the concept of CWP(combined wavelet packets) is proposed. CWP can be obtained from COWB(combined orthonormal wavelet bases) which is composed of several orthonormal wavelet bases having the same space structure in a multiresolution analysis view. Compared with traditional wavelet packets, CWP have not only better frequency localization, but also waveshape variation. The wavelet coefficients can be computed by a fast algorithm which computes in the frequency domain and uses FFT.
%K Multiresolution analysis
%K combined orthonormal wavelet basis
%K wavelet packets<br>多分辨分析
%K 混合正交小波基，小波包.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=BEE14ECF12A0112E&yid=8CAA3A429E3EA654&vid=9CF7A0430CBB2DFD&iid=38B194292C032A66&sid=8575BEDA702C4B7C&eid=BBF7D98F9BEDEC74&journal_id=1000-9825&journal_name=软件学报&referenced_num=1&reference_num=9