Parameter estimation of LFM signals based on time reversal

被引：0
|
作者：
MA Xinjie [1 ]
QI Wei [2 ]
CHE Kaijun [1 ]
WU Gang [3 ]
机构：
[1] School of Electronic Science and Engineering, Xiamen University
[2] Beijing Institute of Tracking and Telecommunications Technology
[3] Jiuquan Satellite Launch Center
来源：
JournalofSystemsEngineeringandElectronics | 2023年 / 34卷 / 03期
关键词：
D O I：
暂无
中图分类号：
TN911.7 [信号处理];
学科分类号：
0711 ; 080401 ; 080402 ;
摘要：
In this paper, parameter estimation of linear frequency modulation(LFM) signals containing additive white Gaussian noise is studied. Because the center frequency estimation of an LFM signal is affected by the error propagation effect,resulting in a higher signal to noise ratio(SNR) threshold, a parameter estimation method for LFM signals based on time reversal is proposed. The proposed method avoids SNR loss in the process of estimating the frequency, thus reducing the SNR threshold. The simulation results show that the threshold is reduced by 5 dB compared with the discrete polynomial transform(DPT) method, and the root-mean-square error(RMSE) of the proposed estimator is close to the Cramer-Rao lower bound(CRLB).
引用
收藏
页码：674 / 681
页数：8
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