| 引用本文: | 徐振海,王罗胜斌,刘兴华.利用复单脉冲比的群目标存在性检测算法.[J].国防科技大学学报,2017,39(2):96-100.[点击复制] |
| XU Zhenhai,WANG Luoshengbin,LIU Xinghua.Multiplicity detection of multiple unresolved targets using complex monopulse ratio[J].Journal of National University of Defense Technology,2017,39(2):96-100[点击复制] |
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| 利用复单脉冲比的群目标存在性检测算法 |
| 徐振海, 王罗胜斌, 刘兴华 |
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(国防科技大学 电子信息系统复杂电磁环境效应国家重点实验室， 湖南 长沙)
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| 摘要: |
| 详细推导单目标和群目标条件下单脉冲比的统计特性，根据其本质差异提出基于单脉冲比的群目标检测算法，在双目标条件下通过仿真分析了群目标检测性能与信噪比、目标角度间隔以及复幅度比之间的关系，得出了有益的结论。当小目标伴随大目标时不容易被检测出来；两个幅度相当的目标，相位差别越大越有利于群目标检测。群目标检测可以有效剔除“野值”，为分辨与测量奠定基础。 |
| 关键词: 群目标 存在性检测 单脉冲比 |
| DOI：10.11887/j.cn.201702014 |
| 投稿日期：2015-07-01 |
| 基金项目:国家自然科学基金资助项目（61471372） |
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| Multiplicity detection of multiple unresolved targets using complex monopulse ratio |
| XU Zhenhai, WANG Luoshengbin, LIU Xinghua |
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(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics & Information System,
National University of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The statistical property of monopulse ratio was derived under the condition of single target and multiple unresolved targets. According to the inherent difference, the multiplicity detection algorithm was proposed using complex monopulse ratio. Taking two targets as an example, the detection performance was presented by Mont Carlo simulations, with respect to the SNR (signal to noise ratio), the angle interval and the complex amplitude ratio. Some meaningful conclusions are inferred qualitatively. When one target predominates, the detection performance is low. As for two comparative targets, the detection performance is improved with the increase of the phase difference. This algorithm can eliminate the outliers of estimated angle effectively and can lay the foundation for the resolution and measurement process of multiple targets. |
| Keywords: unresolved targets multiplicity detection monopulse ratio |
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