%0 Journal Article
%T Improved method of instantaneous frequency estimation based on wavelet ridge<br>基于改进小波脊提取算法的数字信号瞬时频率估计方法
%A WANG Zhao-Hua
%A GUO Li
%A LI Hui
%A <br>汪赵华
%A 郭立
%A 李辉
%J 中国科学院研究生院学报
%D 2009
%I 
%X In order to meet the precision requirement of digital signal instantaneous frequency estimation, an improved algorithm is proposed based on deep analyses of the principle of wavelet ridge. The major improvements of the algorithm include the arrangements on initial values, analytical wavelet's parameter and estimation precision of iterative process. Experimental signal results show that the improved algorithm is more robust and practical.
%K digital signal
%K instantaneous frequency
%K wavelet ridge<br>数字信号
%K 瞬时频率
%K 小波脊
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=542D03835AD8A70A19E26D0CD371404F&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=E158A972A605785F&sid=4D4C81DBA842B7BD&eid=8143FF92EEF26F96&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=0&reference_num=19