The Study on STAP Method for End-Fire Array Airborne Radar with Mutual Coupling Effect

LI Yong-wei; XIE Wen-chong

doi:10.3969/j.issn.0372-2112.2020.06.007

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The Study on STAP Method for End-Fire Array Airborne Radar with Mutual Coupling Effect

更新时间：2025-07-16

- The Study on STAP Method for End-Fire Array Airborne Radar with Mutual Coupling Effect
- Acta Electronica Sinica Vol. 48, Issue 6, Pages: 1091-1098(2020)
- 作者机构：
  
  空军预警学院雷达兵器运用工程军队重点实验室,湖北,武汉,430019
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61102169)
- DOI：10.3969/j.issn.0372-2112.2020.06.007
  CLC： TN959.73
- Published Online：25 June 2020，
  
  Published：2020
- 稿件说明：
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LI Yong-wei, XIE Wen-chong. The Study on STAP Method for End-Fire Array Airborne Radar with Mutual Coupling Effect[J]. Acta Electronica Sinica, 2020, 48(6): 1091-1098.
DOI：

LI Yong-wei, XIE Wen-chong. The Study on STAP Method for End-Fire Array Airborne Radar with Mutual Coupling Effect[J]. Acta Electronica Sinica, 2020, 48(6): 1091-1098. DOI： 10.3969/j.issn.0372-2112.2020.06.007.

摘要

互耦效应是阵列天线一个固有的重要属性，而端射阵天线由于其特殊的主波束指向以及抑制栅瓣所要求的小阵元间距，其阵列间存在的互耦效应比侧射阵更加严重.本文首先分析了互耦效应对端射阵天线方向图的影响，构建了存在互耦效应下的天线方向图模型；然后给出了考虑互耦效应的杂波模型并分析了互耦对端射阵机载雷达杂波谱以及STAP（Space-Time Adaptive Processing）性能的影响；最后提出了一种基于杂波协方差矩阵重构的互耦效应补偿方法.计算机仿真验证了所提方法的有效性.

Abstract

Mutual coupling effect is an important and intrinsic property of array antenna. Because of its special main beam pointing and the small element spacing required to suppress the grating lobes

the mutual coupling effect of end-fire array antenna arrays is much more serious than that of side-fire array. In this paper

the influence of mutual coupling effect on the pattern of end-fire array is analyzed

and the pattern model of end-fire array with mutual coupling effect is constructed. Then the clutter model considering mutual coupling effect is given and the influence of mutual coupling on the clutter spectrum and STAP (Space-Time Adaptive Processing) performance of end-fire array airborne radar is analyzed. Finally

a mutual coupling effect compensation method based on clutter covariance matrix reconstruction is proposed. The computer simulation verifies the effectiveness of the proposed method.

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A Non-stationary Clutter Spectrum Compensation Method for End-Fire Array Airborne Radar with Range Ambiguity

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