ESTIMATION OF INSTANTANEOUS FREQUENCY USING THE DISCRETE WIGNER DISTRIBUTION

被引：95
|
作者：
RAO, P
TAYLOR, FJ
机构：
[1] Department of Electrical Engineering, University of Florida, Gainesville
来源：
ELECTRONICS LETTERS | 1990年 / 26卷 / 04期
关键词：
Frequency modulation; Mathematical techniques; Signal processing;
D O I：
10.1049/el:19900165
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：
Analytical expressions for the performance of the discrete Wigner distribution (DWD) in estimating the instantaneous frequency of linear frequency modulated signals in additive white noise are derived and verified using simulation. It is shown that the DWD peak provides an optimal estimate at high input signal-to-noise ratios. The applicability of these results to the general case of nonlinear FM signals is discussed. © 1990, The Institution of Electrical Engineers. All rights reserved.
引用
收藏
页码：246 / 248
页数：3
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