| 慢起伏不可分辨目标的单脉冲角估计 |
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| 引用本文： | 赵宜楠,姚剑,李风从.慢起伏不可分辨目标的单脉冲角估计[J].系统工程与电子技术,2010,32(10):2021-2024. |
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| 作者姓名： | 赵宜楠 姚剑 李风从 |
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| 作者单位： | 1. 哈尔滨工业大学（威海）信息科学与工程学院， 山东 威海 264209；
2. 中国电子科技集团公司第五十四研究所， 河北 石家庄 050081 |
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| 摘 要： | 不可分辨目标角估计方法大多是以SwerlingⅡ型目标进行信号建模，这通常需要雷达采用频率捷变来实现脉冲间目标幅度的不相关。考虑到非频率捷变雷达观测的目标回波为慢起伏的情况，深入研究了目标雷达散射截面积(radar cross section, RCS)起伏特性对单脉冲雷达测向的影响，提出了一种基于目标单脉冲角估计统计特征的两个慢起伏不可分辨目标的角度分辨方法。Monte Carlo仿真结果表明了该方法的有效性。
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| 关 键 词： | 单脉冲雷达 不可分辨目标 角估计 慢起伏 |
Angle estimation for slow-fluctuation unresolvable targets with monopulse radar |
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| ZHAO Yi-nan,YAO Jian,LI Feng-cong.Angle estimation for slow-fluctuation unresolvable targets with monopulse radar[J].System Engineering and Electronics,2010,32(10):2021-2024. |
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| Authors: | ZHAO Yi-nan YAO Jian LI Feng-cong |
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| Institution: | 1. School of Information Science and Engineering, Harbin Inst. of Technology (Weihai), Weihai 264209, China; ;
2. The 54th Inst. of China Electronics Technology Group Corporation, Shijiazhuang 050081, China |
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| Abstract: | The modelling of angular estimation methods for unresolvable targets is mostly based on Swerling Ⅱ type targets. In this case, however, frequency agility is usually used to ensure that the amplitudes of the targets for pulse-to-pulse are irrelevant. Considering that the target echoes observed by non-frequency agility radarsare slowly fluctuant, the influence of targets’radar cross section (RCS) fluctuation on the direction finding of monopulse radars is investigated and an angular resolution approach for two slow-fluctuation unresolvable targets based on statistical characteristics of monopulse angular estimation is provided. Monte Carlo simulations confirm the validity of the proposed approach. |
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| Keywords: | monopulse radar unresolved target angle estimation slow-fluctuation |
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