| 多分布类型杂波背景下恒虚警处理器性能分析 |
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| 引用本文： | 胡文琳,王首勇,王永良,谢文冲. 多分布类型杂波背景下恒虚警处理器性能分析[J]. 系统工程与电子技术, 2007, 29(6): 883-886 |
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| 作者姓名： | 胡文琳 王首勇 王永良 谢文冲 |
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| 作者单位： | 1. 国防科技大学电子信息与工程学院,湖南,长沙,410073;空军雷达学院重点实验室,湖北,武汉,430019
2. 空军雷达学院重点实验室,湖北,武汉,430019 |
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| 摘 要： | 针对恒虚警(CFAR)处理器在多分布类型杂波中的应用背景,分析了杂波分布检验恒虚警(CT-CFAR)处理器的检测性能。该处理器在CFAR处理前首先进行杂波分布检验,因而较瑞利(Rayleigh)分布假设杂波背景下的CFAR(Rayleigh-CFAR)处理器取得了较小的CFAR损失。通过与Rayleigh-CFAR处理器以及利用杂波分布先验信息的CFAR(D-CFAR)处理器性能比较,揭示了三种CFAR处理器之间的内在联系。仿真结果表明,在信杂比较低时,CT-CFAR较常规的Rayleigh-CFAR取得了较大的性能改善。
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| 关 键 词： | 雷达 多分布类型杂波 CFAR处理 分布检验 |
| 文章编号： | 1001-506X(2007)06-0883-04 |
| 修稿时间： | 2006-07-12 |
Performance analysis of CFAR processor in multi-distribution clutter background |
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| HU Wen-lin,WANG Shou-yong,WANG Yong-liang,XIE Wen-chong. Performance analysis of CFAR processor in multi-distribution clutter background[J]. System Engineering and Electronics, 2007, 29(6): 883-886 |
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| Authors: | HU Wen-lin WANG Shou-yong WANG Yong-liang XIE Wen-chong |
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| Abstract: | In view of the applied background of CFAR processor in multi-distribution clutter,the detection performances of the clutter distribution test CFAR(CT-CFAR) are investigated.The CT-CFAR processor performs a clutter distribution testing procedure before the CFAR processing,and therefore obtains a lower CFAR loss than the CFAR processor in Rayleigh clutter assumption background(Rayleigh-CFAR).Through comparing with the Rayleigh-CFAR and knowledge-based CFAR(D-CFAR),the inherent relations among the three CFAR processors are illustrated.Simulation results show that the CT-CFAR obtains considerable improvement in detection performance at low signal-noise-ratio comparing with the conventional Rayleigh-CFAR. |
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| Keywords: | radar multi-distribution clutter CFAR processing distribution test |
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