共形阵机载火控雷达杂波建模与杂波抑制

doi:10.3969/j.issn.1001-506X.2011.08.12

Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (8): 1738-1744.doi: 10.3969/j.issn.1001-506X.2011.08.12

共形阵机载火控雷达杂波建模与杂波抑制

段克清1,2, 谢文冲2, 王永良2, 张增辉3

1. 国防科学技术大学电子科学与工程学院, 湖南长沙 410073；2. 空军雷达学院雷达兵器运用工程军队重点实验室, 湖北武汉 430019； 3. 国防科学技术大学理学院, 湖南长沙 410073

出版日期:2011-08-15 发布日期:2010-01-03

Clutter modeling and suppression for airborne fire control radar with conformal antennas array

DUAN Ke-qing1,2, XIE Wen-chong2, WANG Yong-liang2, ZHANG Zeng-hui3

1. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China; 
2. Key Laboratory of Application Engineering of Radar Ordnance, Air Force Radar Academy, Wuhan 430019, China; 
3. School of Sciences, National University of Defense Technology, Changsha 410073, China

Online:2011-08-15 Published:2010-01-03

摘要/Abstract

摘要：

共形阵机载火控雷达较常规平面阵机载火控雷达有着更少的负载、更好的空气动力性能及更大的扫描范围等优点。对机头共形阵火控雷达的子阵划分、方向图特性、杂波建模和杂波抑制等问题进行了研究。首先,给出了机头共形阵天线的数学模型和几何结构,依据火控雷达动目标检测需求确定了该天线工作方式和子阵合成方式,并分析了机头共形阵的天线方向图特性；然后,结合共形阵阵面结构特点分析了机头共形阵的杂波谱分布特性；最后,利用空时自适应处理(space time adaptive processing, STAP)方法对共形阵机载火控雷达进行了杂波抑制处理,并通过仿真分析了STAP方法的杂波抑制性能。

Abstract:

Airborne fire control radar with conformal antennas array offers many advantages over conventional one with planar antenna array, such as less payload weight, larger effective aperture and increased field of view, without mechanically canting or rotating the array. The airborne fire control radar with conformal antennas array is analyzed in terms of subarray division, clutter characteristics and clutter suppression, etc. Firstly, the mathematical model and geometry configuration of conformal antennas array are given, and the manners of subarray division and working are obtained based on the requirement for the moved target detection of airborne fire control radar, and the properties of conformal antennas array pattern are analyzed. Secondly, the clutter spectrum distribution in space-time plane is analyzed. Finally, the clutter suppression performance of existing space time adaptive processing (STAP) techniques for practice is compared, and the minimum detectable velocity of airborne fire control radar with conformal antennas array is shown.

段克清, 谢文冲, 王永良, 张增辉. 共形阵机载火控雷达杂波建模与杂波抑制[J]. Journal of Systems Engineering and Electronics, 2011, 33(8): 1738-1744.

DUAN Ke-qing, XIE Wen-chong, WANG Yong-liang, ZHANG Zeng-hui. Clutter modeling and suppression for airborne fire control radar with conformal antennas array[J]. Journal of Systems Engineering and Electronics, 2011, 33(8): 1738-1744.

共形阵机载火控雷达杂波建模与杂波抑制

Clutter modeling and suppression for airborne fire control radar with conformal antennas array

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