端射阵机载雷达距离模糊非平稳杂波补偿方法

doi:10.3969/j.issn.0372-2112.2020.03.010

电子学报 ›› 2020, Vol. 48 ›› Issue (3): 486-493.DOI: 10.3969/j.issn.0372-2112.2020.03.010

端射阵机载雷达距离模糊非平稳杂波补偿方法

李永伟, 谢文冲

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

收稿日期:2018-11-13 修回日期:2019-09-24 出版日期:2020-03-25
- 作者简介:
- 李永伟 男,1994年出生于湖南耒阳.2017年获空军预警学院雷达工程专业工学学士学位.现为空军预警学院信息与通信工程专业在读硕士研究生,主要研究方向为空时自适应处理、机载雷达信号处理.E-mail:liywei09@foxmail.com;谢文冲 男,1978年出生于山西运城.2006年获国防科技大学信息与通信工程专业工学博士学位,现为空军预警学院雷达兵器运用工程军队重点实验室副教授、硕士研究生导师.主要研究方向为空时自适应处理、机载雷达信号处理和雷达系统.E-mail:xwc1978@aliyun.com
- 基金资助:
- 国家自然科学基金项目 (No.61102169）

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

LI Yong-wei, XIE Wen-chong

Radar Weapon Application Engineering Military Key Research Laboratory, Air Force Early Warning Academy, Wuhan, Hubei 430019, China

Received:2018-11-13 Revised:2019-09-24 Online:2020-03-25 Published:2020-03-25
- Supported by:
- National Natural Science Foundation of China (No.61102169)

摘要/Abstract

摘要： 端射阵天线是指波束指向垂直于阵列法线方向的一类特殊雷达天线，由于其具有低剖面和定向辐射特性，因而特别适合用于机载雷达的补盲.由于端射阵通常呈前视放置，因而与传统前视侧射阵机载雷达一样，不可避免地要面临杂波的距离非平稳问题.本文基于端射阵机载雷达杂波谱特性，提出了一种距离模糊下端射阵近程杂波补偿新方法.该方法以最远可检测距离单元为参考单元并增加了动目标约束保护条件，克服了存在距离模糊时基于杂波谱配准（Registration-Based Compensation，RBC）原理的传统补偿方法存在的目标相消以及计算量大的问题；同时针对可能存在的目标约束失配问题，进一步提出了基于虚拟波束的扩展补偿方法.计算机仿真结果验证了本文方法的有效性.

关键词: 端射阵, 距离模糊, 非平稳杂波补偿, 动目标约束, 虚拟波束

Abstract: End-fire array antenna is a kind of special radar antenna with beam pointing perpendicular to the normal direction of the array. Because of its low profile and directional radiation characteristics, it is especially suitable for blind compensation of airborne radar. As end-fire array is usually placed forward-looking, it inevitably faces the problem of non-stationary clutter which just likes traditional forward-look side-fire array. Based on the clutter spectrum characteristics of end-fire array airborne radar, a novel short-range non-stationary clutter compensation method for end-fire array with range ambiguity is proposed in this paper. The farthest detectable range unit is taken as the reference unit and the constraint protection condition is added to the moving target in this method, which overcomes the disadvantage of target cancellation and large computation of the traditional compensation method based on RBC (Registration-Based Compensation) principle with range ambiguity. At the same time, aiming at the problem of the target constraint mismatch, an extended compensation method based on virtual beam is proposed. The computer simulation results verify the effectiveness of the proposed method.

Key words: end-fire array, range ambiguity, non-stationary clutter compensation, moving target constraint, virtual beam

中图分类号:

TN959.73

李永伟, 谢文冲. 端射阵机载雷达距离模糊非平稳杂波补偿方法[J]. 电子学报, 2020, 48(3): 486-493.

LI Yong-wei, XIE Wen-chong . A Non-stationary Clutter Spectrum Compensation Method for End-Fire Array Airborne Radar with Range Ambiguity[J]. Acta Electronica Sinica, 2020, 48(3): 486-493.

参考文献

[1] 刘喜玲.机载端射阵列天线的研究[D].西安:西安电子科技大学,2015. LIU X L.Research of Airborne End-Fire Antenna Array[D].Xi'an:Xidian University,2015.(in Chinese)
[2] 谢文冲,王永良.基于CMT技术的非正侧面阵机载雷达杂波抑制方法研究[J].电子学报,2007,35(3):441-444. XIE W C,WANG Y L.Study on clutter suppression approach to airborne phased radar with non-sidelooking arrays based on CMT[J].Acta Electronica Sinica,2007,35(3):44-444.(in Chinese)
[3] 高飞,谢文冲,王永良.非均匀杂波环境3D-STAP方法研究[J].电子学报,2009,37(4):868-872. GAO F,XIE W C,WANG Y L.Research on 3D-STAP methods in non-stationary clutter[J].Acta Electronica Sinica,2009,37(4):868-872.(in Chinese)
[4] 段克清,谢文冲,陈辉,等.基于俯仰维信息的机载雷达非均匀杂波抑制方法[J].电子学报,2011,39(3):585-590. DUAN K Q,XIE W C,CHEN H,et al.Elevation based methods for nonhomogeneous clutter suppression in airborne radar[J].Acta Electronica Sinica,2011,39(3):585-590.(in Chinese)
[5] BORSARI G K.Mitigating effects on STAP processing caused by an inclined array[A].Proceeding.of IEEE Radar Conference[C].Dallas:IEEE,1998.135-140.
[6] HIMED B,ZHANG Y H,HAJJARI A.STAP with angle-Doppler compensation for bistatic airborne radar[A].Proceeding of IEEE Radar Conference[C].Long Beach:IEEE,2002.311-317.
[7] JAFFER A,Ho P T.Adaptive angle-Doppler compensation techniques for bistatic STAP radars[R].OH,USA:AFRL,2005.
[8] LAPIERRE F D,VERLY J G.Registration-based solutions to the range-dependence problem in radar STAP[A].Proceeding of the 11th Adaptive Sensor Array Processing Workshop[C].Lexington:IEEE,2003.1-6.
[9] VARADARAJAN V,KROLIK J L.Joint space-time interpolation for distorted linear and bistatic array geometries[J].IEEE Transactions on Signal Processing,2006,54(3):848-860.
[10] 刘锦辉,廖桂生,李明.距离模糊的机载非正侧面阵雷达杂波谱补偿新方法[J].电子学报,2011,39(9):2060-2066. LIU J H,LIAO G S,LI M.A clutter spectrum compensation method for non-sidelooking airborne radar with range ambiguity[J].Acta Electronica Sinica,2011,39(9):2060-2066.(in Chinese)
[11] 刘锦辉,廖桂生,李明.对运动目标约束的机载前视阵雷达杂波谱补偿方法[J].电波科学学报,2011,26(5):910-916. LIU J H,LIAO G S,LI M.Moving target constraint clutter compensation method for forward-looking airborne radar[J].Chinese Journal of Radio Science,2011,26(5):910-916.(in Chinese)
[12] 王永良,彭应宁.空时自适应信号处理[M].北京:清华大学出版社,2000. WANG Y L,PENG Y N.Space-time adaptive processing[M].Beijing:Tsinghua University Press,2000.(in Chinese)
[13] YAO G W,XUE Z H,LIU Z K,et al.Design of high-directivity end-fire antenna array[A].Proceeding.of International Conference on Microwave and Millimeter Wave Technlogy[C].Nanjing:IEEE,2008.424-427.
[14] LAPIERRE F D,VERLY J G.Foundation for mitigating range dependence in radar space-time adaptive processing[J].IET Radar,Sonar and Navigation,2009,3(1):18-29.

端射阵机载雷达距离模糊非平稳杂波补偿方法

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

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 8

编辑推荐

Metrics

[1]	李永伟, 谢文冲. 互耦效应下端射阵机载雷达STAP方法研究[J]. 电子学报, 2020, 48(6): 1091-1098.
[2]	王成浩, 廖桂生, 许京伟. FDA-SAR高分辨宽测绘带成像距离解模糊方法[J]. 电子学报, 2017, 45(9): 2085-2091.
[3]	刘锦辉;廖桂生;李明. 距离模糊的机载非正侧面阵雷达杂波谱补偿新方法[J]. 电子学报, 2011, 39(9): 2060-2066.
[4]	冯坤菊;王春阳;段垣丽;张柏华;田波. 机载双基地STAP的OP-DW预处理算法及其性能研究[J]. 电子学报, 2011, 39(3): 700-704.
[5]	张柏华;谢文冲;王永良;张永顺. 基于最大似然估计的机载双基地雷达距离模糊杂波抑制方法[J]. 电子学报, 2011, 39(12): 2836-2841.
[6]	齐维孔;禹卫东;祁海明. 星载MIMO-SAR与距离向DBF相结合系统研究[J]. 电子学报, 2010, 38(10): 2251-2257.
[7]	唐波;王卫延. 组合调制脉冲序列在扩展合成孔径雷达测绘带宽中的应用[J]. 电子学报, 2005, 33(6): 1004-1007.
[8]	许邦建;李纲;皇甫堪. 噪扰下数字化多频连续波雷达的测距模糊问题[J]. 电子学报, 2002, 30(6): 903-906.