| 引用本文: | 冯德军,陈志杰,王雪松,等.基于一维距离像的导弹目标运动特征提取方法.[J].国防科技大学学报,2005,27(6):43-47.[点击复制] |
| FENG Dejun,CHEN Zhijie,WANG Xuesong,et al.A Method for Extracting Moving Feature of Ballistic Missile Targets from High Resolution Range Profiles[J].Journal of National University of Defense Technology,2005,27(6):43-47[点击复制] |
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| 基于一维距离像的导弹目标运动特征提取方法 |
| 冯德军1, 陈志杰2, 王雪松1, 王国玉1 |
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(1.国防科技大学 电子科学与工程学院，湖南 长沙 410073;2.国防科技大学 训练部计算中心，湖南 长沙 410073)
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| 摘要: |
| 根据导弹目标运动方式及其回波特点，提出了一种基于一维距离像的运动目标特征提取方法。在对回波进行全去斜率处理后获得目标一维像。通过观测一维像序列的长度变化周期，提取目标的章动频率；根据距离像在成像窗口中的位置，获取雷达和目标的径向距离；利用相邻距离像相关方法，获取距离像平移位置，从而推出雷达—目标的径向速度。进行了相应的仿真实验，结果表明了该方法的有效性。 |
| 关键词: 一维距离像 运动目标 导弹 特征提取 |
| DOI： |
| 投稿日期：2005-07-10 |
| 基金项目:全国优秀博士论文专项资金资助项目(08100101)；国防预研基金资助(41303517) |
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| A Method for Extracting Moving Feature of Ballistic Missile Targets from High Resolution Range Profiles |
| FENG Dejun1, CHEN Zhijie2, WANG Xuesong1, WANG Guoyu1 |
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(1.College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073,China;2.Computing Center of Exercitation Department, National Univ. of Defense Technology, Changsha 410073,China)
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| Abstract: |
| Based on the signature analysis of wideband echo from the ballistic missile, a novel method is proposed, which can extract the features of the moving target. High-resolution radar echo is processed by STRETCH technique and range profiles are obtained. By observing the periods of the target length variant, the frequency of nutation is deduced. According to the location of the rangeprofile in imaging windows, the range between the radar and target is estimated. After the range shift between the two adjacent rangeprofile provided by envelope correlation algorithm,the target velocity is estimated by computing the time difference between the adjacent two mixers. Simulation results show the effectiveness of the method. |
| Keywords: high resolution rangeprofile moving target missile signature extracting |
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