| 引用本文: | 段克清,谢文冲,王永良.基于先验知识的降秩STAP方法研究.[J].国防科技大学学报,2010,32(2):73-78.[点击复制] |
| DUAN Keqing,XIE Wenchong,WANG Yongliang.Study on Knowledge-aided Reduced Rank STAP Method[J].Journal of National University of Defense Technology,2010,32(2):73-78[点击复制] |
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| 基于先验知识的降秩STAP方法研究 |
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(1.国防科技大学 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)
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| 摘要: |
| 提出了一种基于杂波先验知识的降秩(RR)空时自适应处理(STAP)方法——KA-RR法，该方法首先利用载机平台运动参数、雷达系统参数及地形、地貌参数等先验知识构建机载雷达杂波模型，然后通过该模型对机载雷达杂波数据进行预白化处理，最后利用降秩STAP方法自适应抑制剩余杂波。仿真结果表明，相对于传统的降秩STAP方法，KA-RR方法具有更好的杂波抑制性能和更强的鲁棒性。 |
| 关键词: 空时自适应处理 降秩 先验知识 非均匀 |
| DOI： |
| 投稿日期：2009-06-10 |
| 基金项目:国家自然科学基金重点资助项目(60736009) |
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| Study on Knowledge-aided Reduced Rank STAP Method |
| DUAN Keqing1,2, XIE Wenchong3, WANG Yongliang3 |
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(1.College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;2. 2.Key Research Lab, Air Force Radar Academy, Wuhan 430019, China;3.2.Key Research Lab, Air Force Radar Academy, Wuhan 430019, China)
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| Abstract: |
| A novel knowledge-aided reduced rank (RR) space time adaptive processing (STAP) method is proposed in this paper. Firstly, a clutter model was constructed by a priori knowledge such as flying parameters, radar system parameters, mapping and terrain parameters. Secondly, the clutter was performed via the pre-whiten processing of the constructed clutter model. Finally, RR STAP method was used to suppress the residual clutter. The simulation results show the KA-RR method is more robust in nonhomogeneous clutter environment compared with conventional RR STAP method. |
| Keywords: Space Time Adaptive Processing (STAP) Reduced Rank (RR) a priori knowledge nonhomogeneity |
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