Clutter suppression of wind farms for ATC surveillance radar based on BPDN

Journal of Civil Aviation University of China ›› 2022, Vol. 40 ›› Issue (5): 8-14.

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Clutter suppression of wind farms for ATC surveillance radar based on BPDN

HE Weikun¹ , BI Fenghua² , ZHANG Ying¹ , LI Shuang¹

（1. Tianjin Key Lab for Advanced Signal Processing, CAUC, Tianjin 300300, China; 2. Leiyin Electronic Technology Development Company of Beijing, Beijing 100071, China）

Received:2022-02-25 Revised:2022-05-20 Online:2022-10-15 Published:2023-10-27

Abstract

Abstract: Aiming at the problem of poor performance of wind farm clutter suppression with the morphological component analysis(MCA) method in low signal to clutter ratio(SCR), the paper proposes clutter suppression algorithm based on BPDN(the basis pursuit de-noising) with regard to different sparse characteristic for the clutter and airplane target in different transform domains. Firstly, based on BPDN method, the wind farm clutter is reconstructed in the time-frequency domain and eliminated from the observed echoes. Secondly, BPDN is utilized to extract the aircraft target signal in the frequency domain and to achieve wind farm clutter suppression in low SCR. The experiment results of simulation and measured data verify the effectiveness of the proposed method.

Key words: wind farm, clutter suppression, low signal to clutter ratio(SCR), basis pursuit de-noising（BPDN）, morpho－ logical component analysis(MCA)

CLC Number:

HE Weikun , BI Fenghua , ZHANG Ying , LI Shuang. Clutter suppression of wind farms for ATC surveillance radar based on BPDN[J]. Journal of Civil Aviation University of China, 2022, 40(5): 8-14.

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Clutter suppression of wind farms for ATC surveillance radar based on BPDN

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