Parameter estimation of LFM signals based on time reversal
نویسندگان
چکیده
In this paper, parameter estimation of linear frequency modulation (LFM) signals containing additive white Gaussian noise is studied. Because the center an LFM signal affected by error propagation effect, resulting in a higher to ratio (SNR) threshold, method for based on time reversal proposed. The proposed avoids SNR loss process estimating frequency, thus reducing threshold. simulation results show that threshold reduced 5 dB compared with discrete polynomial transform (DPT) method, and root-mean-square (RMSE) estimator close Cramer-Rao lower bound (CRLB).
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ژورنال
عنوان ژورنال: Chinese Journal of Systems Engineering and Electronics
سال: 2023
ISSN: ['1004-4132']
DOI: https://doi.org/10.23919/jsee.2023.000014