距离门信号级的机载双基雷达地杂波模拟方法

李迎春; 李景文

距离门信号级的机载双基雷达地杂波模拟方法

北京航空航天大学电子信息工程学院, 北京 100191

详细信息

作者简介:
李迎春(1983-),女,安徽界首人,博士生,yingchunli@ee.buaa.edu.cn.

中图分类号: TN 959.73
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- 文章访问数: 3450
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- 被引次数: 0
出版历程
- 收稿日期: 2009-11-30
- 网络出版日期: 2011-01-31

Method of ground clutter simulation in range gate signal level for airborne bistatic radar

School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 由于几何配置的多样性,双基雷达地杂波模拟比较复杂.虽然单基雷达杂波散射元划分的方法可用于双基地杂波仿真,但不利于特定距离门信号的分析.在比较了单双基地雷达地面散射元等距线的基础上,提出一种距离门信号级的机载双基雷达地杂波模拟方法,距离向以双程斜距分辨率划分椭圆环,推导出地面椭圆表达式和散射元坐标解析解,方位向引入椭圆中间参量,在保证多普勒分辨率基础上划分杂波元网格,给出杂波模拟中未知参量的计算.该方法不仅能进行所有观测区域杂波功率谱的仿真,且可完成某些或某个距离门杂波回波信号的计算分析,实现距离门信号级杂波的模拟.仿真结果验证了该方法的有效性.
- 机载 /
- 双基地雷达 /
- 杂波 /
- 模拟 /
- 散射元
Abstract: Ground clutter simulation of bistatic radar is complex due to the variety of geometry configuration. The method of clutter scatterer division in monostatic radar can be applied to bistatic radar, while it is inconvenient for clutter analysis in specific range gates. One clutter simulation approach in range gate signal lever for airborne bistatic was proposed based on the comparison between ground equidistance traces of bistatic and monostatic radar. The equidistance ellipse rings were divided with two-way distance resolution in range direction, the expression of ground ellipse was deduced, and the analytic resolutions of scatterers were presented. In azimuth direction the clutter cell grids were dispersed by introducing intermediate variable guaranteeing the Doppler resolution, and the computing processes of unknown parameters used in clutter simulation were presented. The approach can complete not only the simulation of clutter spectrum for overall area observed, but also the computation of the clutter echoes in one or some special range gates. Simulation results prove the validity of the method.
- airborne /
- bistatic radar /
- clutter /
- simulation /
- scatterers

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参考文献(1)

[1] 杨振起,张永顺,骆永军.双(多)基地雷达系统[M].北京:国防工业出版社,1998:1-29 Yang Zhenqi,Zhang Yangshun,Luo Yongjun.Bistatic (multistatic) radar systems [M].Beijing:National Defense Industry Press,1998:1-2(in Chinese) [2] Klemm R.Comparison between monostatic and bistatic antenna configuration for STAP [J].IEEE Transactions on Aerospace and Electronic System,2000,36(2):596-608 [3] Zhang Y H,Himed B.Effects of geometry on clutter characteristics of bistatic radars //Proceedings of the International Radar Conference.Huntsville:IEEE,2003:417-424 [4] Han L J,Chen Z M,Duan R,et al.Modeling of varying geometrical scenarios of bistatic radar //Proceeding of 2007 International Symposium on Intelligent Signal Processing and Communication Systems.Xiamen:IEEE,2007:196-199 [5] 吴洪,王永良.双基地机载预警雷达杂波建模与分析[J].电子学报,2006,34(12):2209 -2213 Wu Hong,Wang Yongliang.Modeling and analysis of the ground clutter spectrum on bistatic airborne early warning radar[J].Acta Electronica Sinica,2006,34(12):2209-2213(in Chinese) [6] 王炎,吴曼青,陈学佺.空载双基地雷达地杂波模拟[J].系统工程与电子技术,2000,22(3):23-26 Wang Yan,Wu Manqing,Chen Xuequan.Clutter simulation of airborne bistatic radar [J].Systems Engineering and Electronics,2000,22(3):23-26(in Chinese) [7] 肖慧,卢建斌,胡卫东,等.基于旋转地球模型的星载双基地雷达杂波仿真[J].系统工程与电子技术,2008,30(3):418-422 Xiao Hui,Lu Jianbin,Hu Weidong,et al.Clutter simulation of space-borne bistatic radars based on the rotational earth model [J].Systems Engineering and Electronics,2008,30(3):418-422(in Chinese) [8] 肖慧,卢建斌,胡卫东,等.天基双基地雷达杂波仿真技术研究[J].系统仿真学报,2007,19(24):5654-5658 Xiao Hui,Lu Jianbin,Hu Weidong,et al.Study on clutter simulation technology for space-based bistatic radars [J].Journal of System Simulation,2007,19(24):5654-5658(in Chinese) [9] 刘建成,王雪松,施龙飞,等.机载雷达相干杂波模型研究[J].系统工程与电子技术,2005,27(7):1222-1225,1317 Liu Jiandeng,Wang Xuesong,Shi Longfei,et al.Study on coherent clutter model for airborne radars [J].Systems Engineering and Electronics,2005,27(7):1222-1225,1317 (in Chinese) [10] 范海菊.PD雷达地杂波模拟和动目标检测 .北京:北京航空航天大学电子与信息工程学院,2006 Fan Haiju.Research on methods of PD radar ground clutter simulation and moving target detection .Beijing:School of Electronic and Information Engineering,Beijing University of Aeronautics and Astronautics,2006 (in Chinese) [11] Li M,Lin Y M,Ruan F.A simple simulation bethod of ground clutter for airborne pulse doppler radar // CIE'06 International Conference on Radar.Shanghai:IEEE,2006:1-4

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