An iterative algorithm for estimation of linear frequency modulated signal parameters

被引：12
|
作者：
De Luigi, C [1 ]
Moreau, E [1 ]
机构：
[1] ISITV, SIS, F-83162 La Valette Du Var, France
来源：
IEEE SIGNAL PROCESSING LETTERS | 2002年 / 9卷 / 04期
关键词：
estimation; Hough transform; instantaneous frequency; nononstationary signal analysis; Wigner-Ville transform;
D O I：
10.1109/97.1001649
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, we consider the problem of estimation of a nonstationary signal. The time-frequency characteristics and, more precisely, the instantaneous frequency (IF) of such a signal can be highlighted by the Wigner-Ville transform (WVT). Using the properties of the cross WVT, we develop an iterative algorithm taking into consideration the presence of wrong frequencies in the estimated IF sequence of the signal. Finally, computer simulations are performed in order to illustrate the behavior of this iterative scheme.
引用
收藏
页码：127 / 129
页数：3
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