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基于欧拉四面体的下降轨雷达图像定位方法

冉聃 邓欢 李亚超 全英汇 邢孟道

冉聃, 邓欢, 李亚超, 全英汇, 邢孟道. 基于欧拉四面体的下降轨雷达图像定位方法[J]. 电子与信息学报, 2017, 39(3): 677-683. doi: 10.11999/JEIT160512
引用本文: 冉聃, 邓欢, 李亚超, 全英汇, 邢孟道. 基于欧拉四面体的下降轨雷达图像定位方法[J]. 电子与信息学报, 2017, 39(3): 677-683. doi: 10.11999/JEIT160512
RAN Dan, DENG Huan, LI Yachao, QUAN Yinghui, XING Mengdao. Radar Image Positioning Method on Decent Trajectory Based on Euler Tetrahedron[J]. Journal of Electronics & Information Technology, 2017, 39(3): 677-683. doi: 10.11999/JEIT160512
Citation: RAN Dan, DENG Huan, LI Yachao, QUAN Yinghui, XING Mengdao. Radar Image Positioning Method on Decent Trajectory Based on Euler Tetrahedron[J]. Journal of Electronics & Information Technology, 2017, 39(3): 677-683. doi: 10.11999/JEIT160512

基于欧拉四面体的下降轨雷达图像定位方法

doi: 10.11999/JEIT160512
基金项目: 

国家自然科学基金(61471283, 61303035)

Radar Image Positioning Method on Decent Trajectory Based on Euler Tetrahedron

Funds: 

The National Natural Science Foundation of China (61471283, 61303035)

  • 摘要: 导弹在末制导阶段因惯导误差导致弹体实际位置和惯导指示位置存在较大偏差,影响导引头对目标的准确定位,无法满足精确打击的应用需求。由于弹载合成孔径雷达在导弹俯冲下降段特殊的成像几何构型,目标点对应斜视角所在的平面与成像平面异面,因而传统的基于多普勒测角的定位方法已不再适用。该文利用图像匹配获取的高精度地面点相对位置信息和雷达到各目标点的高精度斜距信息,通过构建欧拉四面体几何模型,以场景数字高程作为先验信息筛选参考点,解算出以目标点为原点构建的北天东坐标系下的弹体实际位置,从而为弹体修偏提供准确信息。仿真实验验证了该定位方法能很好地满足导弹末制导阶段的目标定位需求。
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  • 被引次数: 0
出版历程
  • 收稿日期:  2016-05-19
  • 修回日期:  2016-09-30
  • 刊出日期:  2017-03-19

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