| 基于多天线机载SAR的地杂波抑制方法 |
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| 引用本文： | 黄家典,廖桂生. 基于多天线机载SAR的地杂波抑制方法[J]. 雷达科学与技术, 2006, 4(2): 89-93 |
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| 作者姓名： | 黄家典 廖桂生 |
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| 作者单位： | 西安电子科技大学雷达信号处理国家重点实验室,陕西西安,710071;西安电子科技大学雷达信号处理国家重点实验室,陕西西安,710071 |
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| 摘 要： | 传统的单天线合成孔径雷达（SAR）系统由于没有空间维处理能力很难检测地面慢速目标．而多天线SAR和空时自适应信号处理（STAP）为解决这一问题提供了途径。该文研究长相干处理时间导致回波波达方向和多普勒频率均有变化情况下的STAP方法．给出回波波达方向变化的公式，分析动目标多普勒频谱的变化及STAP方法抑制地杂波性能的仿真结果。
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| 关 键 词： | 合成孔径雷达 空时自适应信号处理 动目标检测 |
| 文章编号： | 1672-2337（2006）02-0089-05 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2005-08-22 |
A Method for Suppression of Ground Clutter Based on Multi-Channel Airborne SAR |
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| HUANG Jia-dian,LIAO Gui-sheng. A Method for Suppression of Ground Clutter Based on Multi-Channel Airborne SAR[J]. Radar Science and Technology, 2006, 4(2): 89-93 |
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| Authors: | HUANG Jia-dian LIAO Gui-sheng |
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| Abstract: | For traditional SAR system, it is difficuh to detect slowly moving targets using single antenna. But combination of muhi-antennas with space time adaptive processing can be used to resolve the problem. The changes of DOA and Doppler frequency, which are introduced by the long coherent processing time. are studied in this paper, the equations of changing of DOA and Doppler frequency are presented and analyzed in detail. Finally STAP is adopted to suppress ground clutter, and simulations show that the method is effective. |
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| Keywords: | synthetic aperture radar(SAR) space-time adaptive processing(STAP) moving target(detection)(MTD) |
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