| 间歇采样转发假目标对CFAR检测影响分析 |
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| 引用本文： | 冯德军,杨勇,徐乐涛.间歇采样转发假目标对CFAR检测影响分析[J].国防科技大学学报,2016,38(1):63-68. |
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| 作者姓名： | 冯德军 杨勇 徐乐涛 |
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| 作者单位： | 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,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,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 |
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| 基金项目： | 国家自然科学基金项目（61372170） |
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| 摘 要： | 分析间歇采样转发形成的假目标干扰对雷达CFAR检测的影响和间歇采样转发假目标生成机理,给出间歇采样转发假目标产生方法。在此基础上,以雷达一次搜索周期内虚警、漏警造成的检测代价作为检测性能指标,分别分析单元平均恒虚警检测器、有序恒虚警检测器、剔除和平均恒虚警检测器在间歇采样转发假目标干扰下的检测代价。着重分析间歇采样转发干扰关键参数对检测代价的影响。仿真结果表明,间歇采样转发产生的多个假目标显著提高了雷达的检测代价,检测代价受转发占空比、转发功率的影响较大,而受转发频率影响较小。在三种恒虚警检测器的对比中,剔除和平均恒虚警检测器相对于另两种检测器的检测代价更大些。
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| 关 键 词： | 间歇采样 转发干扰，假目标，恒虚警检测，检测代价 |
| 收稿时间： | 2015/1/28 0:00:00 |
| 修稿时间： | 6/1/2015 12:00:00 AM |
Impact Analysis of CFAR Detection for Active decoy Using Interrupted-Sampling Repeater |
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| FENG Dejun,YANG Yong and XU Letao.Impact Analysis of CFAR Detection for Active decoy Using Interrupted-Sampling Repeater[J].Journal of National University of Defense Technology,2016,38(1):63-68. |
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| Authors: | FENG Dejun YANG Yong and XU Letao |
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| Abstract: | This paper analyzed the impact of interrupted-sampling repeater Jamming (ISRJ) on radar constant false alarm rate detection. The generation principle of false target using ISRJ is introduced at first. Then generation methods of false targets jamming are given. On base of it, the detection cost caused by the false alarm and false dismissal in a search period of radar is chosen as the criteria of detection performance. The detection costs of CA-CFAR, OS-CFAR, CMLD-CFAR detectors under three types of dense multiple false targets jamming environment are analyzed. Specially, we analyze the influence of ISRJ key factors on detection costs. The simulation result shows that detection costs will increase remarkably due to false targets exist and it is sensitive to the jammer power and duty ratios, but has little relationship to the repeating frequency. Among three detectors, the detection cost of radar CMLD-CFAR detectors is higher than that of radar adopting OS-CFAR and that of radar adopting CA-CFAR. |
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| Keywords: | interrupted-sampling repeater jamming active decoy constant false alarm rate detection detection cost |
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