| 基于DPCA的机载SAR动目标检测与定位方法研究 |
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| 引用本文： | 张英,李景文. 基于DPCA的机载SAR动目标检测与定位方法研究[J]. 雷达科学与技术, 2003, 1(4): 223-227 |
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| 作者姓名： | 张英 李景文 |
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| 作者单位： | 北京航空航天大学电子信息工程学院201教研室,北京,100083 |
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| 基金项目： | 教育部优秀青年教师资助项目(No.2000000602)，航天预研项目(No.11321040201) |
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| 摘 要： | 提出了在机载SAR模式下应用三孔径DPCA技术对地面慢速运动目标进行检测与定位的方法，从回波模型入手对此方法进行了理论分析并给出了计算机仿真结果。仿真结果表明，在满足DPCA条件的情况下，系统可以得到理想的主瓣杂波抑制效果和良好的测速定位性能。本文最后给出由于雷达平台的运动误差而导致DPCA条件不满足的情况下该方法的检测、定位性能。
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| 关 键 词： | 机载SAR 目标检测 目标定位 DPCA 偏置相位中心天线 合成孔径雷达 杂波抑制原理 |
| 文章编号： | 1672-2337(2003)04-0223-05 |
| 修稿时间： | 2003-06-30 |
On Airborne SAR Moving Target Detection and Location Method Based on DPCA Technique |
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| ZHANG Ying,LI Jing wen School of Electronics and Information Engineering. BUAA. On Airborne SAR Moving Target Detection and Location Method Based on DPCA Technique[J]. Radar Science and Technology, 2003, 1(4): 223-227 |
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| Authors: | ZHANG Ying LI Jing wen School of Electronics Information Engineering. BUAA |
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| Affiliation: | ZHANG Ying;LI Jing wen School of Electronics and Information Engineering. BUAA. Beijing 100083. China |
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| Abstract: | A new method for slow moving targets detection and location in airborne SAR imagery ispresented based on three-aperture DPCA technique. The method is analyzed on the ground of signal model.and the computer simulation results are given. The simulation results indicate that for ideal DPCA, the per-formance of mainlobe clutter suppression and targets location is perfect. The performance curves with sys-tem error are also given in the end of this paper. |
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| Keywords: | synthetic aperture radar moving target detection displaced phase center antenna |
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