扫描模式航管监视雷达风电场杂波检测与抑制

doi:10.7527/S1000-6893.2015.0232

电子与控制

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扫描模式航管监视雷达风电场杂波检测与抑制

何炜琨, 窄秋苹, 王晓亮, 吴仁彪

中国民航大学天津市智能信号与图像处理重点实验室, 天津 300300

收稿日期:2015-04-29 修回日期:2015-08-18 出版日期:2016-04-15 发布日期:2015-08-28
通讯作者: 何炜琨,Tel.:022-24092437 E-mail:hwkcauc@126.com E-mail:hwkcauc@126.com
作者简介:何炜琨,女,博士,副教授,硕士生导师。主要研究方向:雷达信号处理、风电场杂波检测及抑制。Tel:022-24092437 E-mail:hwkcauc@126.com;窄秋苹,女,硕士研究生。主要研究方向:雷达信号处理、风电场杂波检测及抑制。Tel:022-24092437 E-mail:zhai.qiu.ping@163.com
基金资助:
国家自然科学基金(U1233109,61172112,U1533110);中央高校基本科研业务费专项资金(3122013C008,3122015D005)

Wind turbine clutter detection and mitigation in scanning ATC surveillance radar

HE Weikun, ZHAI Qiuping, WANG Xiaoliang, WU Renbiao

Tianjin Key Laboratory for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China

Received:2015-04-29 Revised:2015-08-18 Online:2016-04-15 Published:2015-08-28
Supported by:
National Natural Science Foundation of China (U1233109,61172112,U1533110);Fundamental Research Funds for the Central Universities (3122013C008,3122015D005)

摘要/Abstract

摘要：

近年来,全球风力发电装机容量呈指数增长。研究表明,风轮机对其附近的航管(ATC)监视雷达会产生严重影响。风轮机杂波的有效检测及抑制,对于保证空中交通安全具有重要意义。首先提出了基于回波谱宽特征的航管监视雷达的风轮机杂波检测方法。针对扫描模式下航管监视雷达频谱分辨率较低的问题,将基于自回归(AR)模型的超分辨率方法和质量中心的概念应用于雷达回波的快速谱宽和谱中心估计算法中,提高谱宽估计的精度。其次针对扫描模式下的风轮机回波数据不是一个完整周期数据的问题,基于缺省数据幅度和相位估计(GAPES)算法实现了扫描模式下风轮机雷达回波缺省数据的估计,而后利用风轮机杂波的周期性抑制风轮机杂波。该算法实现了风轮机杂波的有效检测和抑制,并且其不受限于风轮机与飞机目标在同一个距离单元的情况。仿真结果验证了所提方法的有效性。

关键词: 航管监视雷达, 风轮机杂波, 谱宽, GAPES, 杂波抑制

Abstract:

In recent years, the global wind power installed capacity is growing exponentially. Studies have shown that wind farms will have a serious impact on air traffic control (ATC) surveillance radar located nearby. Effective detection and mitigation of the wind turbine clutter is significant for ensuring the safety of air traffic. Firstly, the wind turbine clutter detection technology based on spectrum width is proposed under the radar scanning mode. For the problem that the Doppler frequency resolution of ATC surveillance radar echoes under scanning mode is low, super-resolution technology based on the Autoregressive (AR) model and the mass center notion are applied to the estimation of spectrum width and spectrum center, which improve the estimation accuracy of spectrum width. Secondly, for the problem that wind turbine clutter under scanning mode is not a complete cycle, gapped-data amplitude and phase estimation (GAPES) algorithm is applied to filling the gapped-data of wind turbine clutter successfully, then wind turbine clutter mitigation method based on its periodical characteristics is used to mitigate the wind turbine clutter. The algorithm implements the effective detection and mitigation of the wind turbine clutter and is not limited to the situation of aircraft and wind turbine in the same range bin. Simulation results verify the effectiveness of the proposed method.

Key words: ATC surveillance radar, wind turbine clutter, spectrum width, GAPES, clutter mitigation

中图分类号:

V443⁺.2

何炜琨, 窄秋苹, 王晓亮, 吴仁彪. 扫描模式航管监视雷达风电场杂波检测与抑制[J]. 航空学报, 2016, 37(4): 1316-1326.

HE Weikun, ZHAI Qiuping, WANG Xiaoliang, WU Renbiao. Wind turbine clutter detection and mitigation in scanning ATC surveillance radar[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(4): 1316-1326.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

扫描模式航管监视雷达风电场杂波检测与抑制

Wind turbine clutter detection and mitigation in scanning ATC surveillance radar

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