| 机载双基雷达STAP动目标检测的杂波特性分析 |
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| 引用本文： | 鲁远耀,张平,李国春.机载双基雷达STAP动目标检测的杂波特性分析[J].系统工程与电子技术,2006,28(2):231-233. |
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| 作者姓名： | 鲁远耀 张平 李国春 |
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| 作者单位： | 中国科学院电子学研究所,北京,100080 |
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| 摘 要： | 通过建立合适的双基坐标系,得出双基雷达的等距离和曲线方程是一族椭圆。在此基础上,研究了3种不同的双基几何配置时的方位-多普勒杂波轨迹特性和功率谱特性,并与单基情形进行对比,从而揭示了双基杂波的非静态特性。研究了杂波特性对STAP处理性能的影响,双基杂波的非静态特性使得STAP处理器的杂波频谱变宽,MDV变大,处理性能大大恶化,必须进行有效地补偿。
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| 关 键 词： | 机载双基雷达 自适应处理 动目标检测 杂波特性 |
| 文章编号： | 1001-506X(2006)02-0231-03 |
| 修稿时间： | 2005年1月12日 |
Clutter characteristics analysis for MTI used with STAP of airborne bistatic radar |
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| LU Yuan-yao,ZHANG Ping,LI Guo-chun.Clutter characteristics analysis for MTI used with STAP of airborne bistatic radar[J].System Engineering and Electronics,2006,28(2):231-233. |
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| Authors: | LU Yuan-yao ZHANG Ping LI Guo-chun |
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| Abstract: | By establishing proper bistatic coordinates,a conclusion is obtained that equidistance curves of bistatic radar are a series of ellipses.On the basis of this,the azimuth-Doppler clutter trajectories and clutter power spectra of three different bistatic geometries are studied.Compared with monostatic radar,the non-stationary nature of bistatic clutter is revealed.Finally,the influence of clutter characteristics on STAP is investigated,and the conclusion drawn is that the non-stationary nature of bistatic clutter broadens the clutter spectra of STAP processor,increases MDV and degrades the processing performances.Therefore,some mitigating measures must be taken. |
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| Keywords: | airborne bistatic radar adaptive processing moving target indication clutter characteristics |
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