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合成孔径无源定位性能分析与参数设计

王裕旗 孙光才 邢孟道 张子敬

王裕旗, 孙光才, 邢孟道, 张子敬. 合成孔径无源定位性能分析与参数设计[J]. 电子与信息学报, 2022, 44(9): 3155-3162. doi: 10.11999/JEIT210524
引用本文: 王裕旗, 孙光才, 邢孟道, 张子敬. 合成孔径无源定位性能分析与参数设计[J]. 电子与信息学报, 2022, 44(9): 3155-3162. doi: 10.11999/JEIT210524
WANG Yuqi, SUN Guangcai, XING Mengdao, ZHANG Zijing. Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3155-3162. doi: 10.11999/JEIT210524
Citation: WANG Yuqi, SUN Guangcai, XING Mengdao, ZHANG Zijing. Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3155-3162. doi: 10.11999/JEIT210524

合成孔径无源定位性能分析与参数设计

doi: 10.11999/JEIT210524
基金项目: 国家杰出青年科学基金(61825105)
详细信息
    作者简介:

    王裕旗:男,博士生,研究方向为合成孔径无源定位

    孙光才:男,博士,教授,研究方向为合成孔径雷达成像和无源定位

    邢孟道:男,博士,教授,研究方向为雷达成像和目标检测与识别

    张子敬:男,博士,教授,研究方向为雷达目标检测、雷达极化信息处理

    通讯作者:

    孙光才 rsandsgc@126.com

  • 中图分类号: TN958

Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning

Funds: The National Science Fund for Distinguished Young Scholars (61825105)
  • 摘要: 合成孔径无源定位中,为获得高的2维分辨率,需要长的合成孔径,但斜距历程的多项式近似会带来距离定位的误差。针对此问题,该文分析了合成孔径定位中距离误差的影响因素,给出了定位误差的近似表达式,同时分析了距离和方位分辨率的影响因素,给出了分辨率的分析方法。在此基础上,综合考虑定位精度和分辨率的约束条件,给出了合成孔径长度参数的优化方法。仿真结果验证了方法的有效性。
  • 图  1  聚焦位置偏差

    图  2  误差的理论分析结果

    图  3  定位误差随距离变化情况图

    图  4  定位误差随波束宽度变化情况

    图  5  定位误差近似分析结果图

    图  6  距离分辨率分析结果

    图  7  方位分辨率分析结果

    图  8  合成孔径长度上限随距离变化图

    图  9  合成孔径长度下限随距离变化

    图  10  合成孔径长度优选曲线

    表  1  不同距离的波束宽度限制

    距离(km)波束宽度(°)
    204.55
    403.83
    603.46
    803.22
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-06-07
  • 修回日期:  2022-07-27
  • 网络出版日期:  2022-08-21
  • 刊出日期:  2022-09-19

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