Range ambiguity clutter suppression for bistatic STAP radar

被引：1
|
作者：
Xie, Wenchong [1 ]
Zhang, Baihua [1 ]
Wang, Yongliang [1 ]
Zhu, Yong [1 ]
Duan, Keqing [1 ]
Li, Rongfeng [1 ]
机构：
[1] Wuhan Early Warning Acad, Key Res Lab, Wuhan 430019, Peoples R China
来源：
EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2013年
关键词：
Bistatic airborne radar; Non-stationarity; Range ambiguity; Space-Time Adaptive Processing (STAP); Clutter Degrees of Freedom (DOFs); AIRBORNE RADAR;
D O I：
10.1186/1687-6180-2013-75
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Bistatic pulse-Doppler airborne radar has desirable properties such as the low probability of detection by other radars relative to its monostatic counterpart. However, the clutter characteristics of bistatic airborne radar are more complex than those of monostatic airborne radar. The clutter spectra not only vary severely with range, but also vary with bistatic configuration. In this article, the geometry model of bistatic airborne radar is given, and the approximate estimation expressions for clutter degrees of freedom (DOFs) are presented. Then a novel clutter suppression method for bistatic airborne radar with range ambiguity is presented. The method completes registration-based range ambiguity clutter compensation based on non-uniform sampling and the estimated clutter DOFs. The simulation results illustrate the performance improvement achieved for bistatic airborne radar.
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页数：13
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