基于BPDN的航管监视雷达风电场杂波抑制

taptap下载安装安卓学报 ›› 2022, Vol. 40 ›› Issue (5): 8-14.

基于BPDN的航管监视雷达风电场杂波抑制

何炜琨¹，毕峰华²，张莹¹，李爽¹

（1.taptap下载安装安卓天津市智能信号与图像处理重点实验室，天津300300；2.北京雷音电子技术开发有限公司，北京100071）

收稿日期:2022-02-25 修回日期:2022-05-20 出版日期:2022-10-15 发布日期:2023-10-27
作者简介:何炜琨（1977—），女，黑龙江龙江人，教授，博士，研究方向为雷达信号处理、风电场杂波抑制.
基金资助:
国家自然科学基金项目（62141108）；taptap下载安装安卓国家自然科学基金配套专项（3122022PT22）

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

摘要/Abstract

摘要： 针对低信杂比（SCR，signaltoclutterratio）情况下，采用传统形态成分分析（MCA，morphologicalcomponentanalysis）方法抑制风电场杂波时出现杂波抑制性能下降的问题，基于杂波与飞机目标回波在不同变换域具有不同稀疏特性的特点，提出基于基追踪降噪（BPDN，basispursuitde-noising）的风电场杂波抑制方法。首先，基于BPDN方法在时频域重构风电场杂波，并将重构后的杂波信号从回波信号中剔除；其次，利用BPDN方法对剔除杂波后的回波在频域提取飞机目标信号，实现低SCR情况下风电场杂波抑制。仿真及实测数据实验结果验证了该方法的有效性。

关键词: 风电场, 杂波抑制, 低信杂比, 基追踪降噪, 形态成分分析

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)

中图分类号:

何炜琨, 毕峰华, 张莹, 李爽. 基于BPDN的航管监视雷达风电场杂波抑制[J]. taptap下载安装安卓学报, 2022, 40(5): 8-14.

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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