| 基于一维像序列的弹道中段目标进动特征提取 |
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| 引用本文： | 颜维,孙文峰,钱李昌,姚汉英.基于一维像序列的弹道中段目标进动特征提取[J].空军雷达学院学报,2011,25(2):87-90,96. |
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| 作者姓名： | 颜维 孙文峰 钱李昌 姚汉英 |
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| 作者单位： | 1. 空军雷达学院研究生管理大队,武汉,430019
2. 空军雷达学院训练部,武汉,430019 |
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| 摘 要： | 鉴于进动周期、进动角等微动参数的提取有助于解决弹道中段弹头、诱饵的识别问题,以中段旋转对称锥体弹头为研究对象,建立了锥体目标进动模型,分析了目标进动对一维距离像的影响,推导了散射点的投影距离变化公式.在此基础上,给出了一种进动周期估计方法,并提出了一种利用锥体目标一维距离像长度变化来估计进动角的方法.该方法可在弹头结构尺寸未知的条件下实现对进动角的提取.仿真结果表明：所提方法有效、稳定,其处理过程简单.
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| 关 键 词： | 一维距离像序列 锥体目标 进动周期 进动角 |
Precession Feature Extraction of Ballistic Midcourse Target Based on HRRP Sequences |
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| YAN Wei,SUN Wen-feng,QIAN Li-chang,YAO Han-ying.Precession Feature Extraction of Ballistic Midcourse Target Based on HRRP Sequences[J].Journal of Air Force Radar Academy,2011,25(2):87-90,96. |
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| Authors: | YAN Wei SUN Wen-feng QIAN Li-chang YAO Han-ying |
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| Affiliation: | YAN Wei1,SUN Wen-feng2,QIAN Li-chang1,YAO Han-ying1 (1.Department of Graduate Management,AFRA,Wuhan 430019,China,2.Division of Training,China) |
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| Abstract: | Considering that the extraction of precession period,precession angle and other micro-motion parameters can be helpful for recognition of warheads and/or decoys in the midcourse of ballistic trajectory,this paper aims to the rotational symmetry cone-shaped warheads in the midcourse,sets up the precession model,analyzes the impact of target precession on HRRP,and derives the formulas that describes the change of projection distance of scattering points.Based on the results,this paper gives a method for prece... |
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| Keywords: | HRRP sequence cone-shaped target precession period precession angle |
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