| Log-normal分布杂波背景下有序统计恒虚警检测器性能分析 |
| |
| 引用本文： | 胡文琳,王永良,王首勇.Log-normal分布杂波背景下有序统计恒虚警检测器性能分析[J].电子与信息学报,2007,29(3):517-520. |
| |
| 作者姓名： | 胡文琳 王永良 王首勇 |
| |
| 作者单位： | 1. 国防科技大学电子科学与工程学院,长沙,410073;空军雷达学院武器系统与兵器运用实验室,武汉,430019
2. 空军雷达学院武器系统与兵器运用实验室,武汉,430019 |
| |
| 基金项目： | 武器装备预研基金
,
高等学校优秀青年教师教学科研奖励计划 |
| |
| 摘 要： | 该文证明了在形状参数已知的均匀对数-正态(Log-normal)杂波背景下有序统计恒虚警(OS-CFAR)检测器能保持恒虚警的特性，导出了该背景下OS-CFAR检测器对非起伏目标的检测性能表达式和平均判决阈值(ADT)表达式。最后用数值方法讨论了最佳序值的选取以及OS-CFAR检测器在取不同参考单元数时相对于理想CFAR的信杂比损失。
|
| 关 键 词： | 雷达 Log-normal分布杂波 OS-CFAR CFAR损失 |
| 文章编号： | 1009-5896（2007）03-0517-04 |
| 收稿时间： | 2005-12-08 |
| 修稿时间： | 2006-09-18 |
Performance of Ordered Statistic CFAR Detector Under Log-normal Distributed Clutter |
| |
| Hu Wen-lin,Wang Yong-liang,Wang Shou-yong.Performance of Ordered Statistic CFAR Detector Under Log-normal Distributed Clutter[J].Journal of Electronics & Information Technology,2007,29(3):517-520. |
| |
| Authors: | Hu Wen-lin Wang Yong-liang Wang Shou-yong |
| |
| Affiliation: | School of Electronic Science and Engineering, NUDT, Changsha 410073, China; Key Lab.,Air Force Radar Academy Army, Wuhan 430019, China |
| |
| Abstract: | The property that the ordered statistics CFAR(OS-CFAR) detector can obtain constant false alarm rate under homogeneous Log-normal distributed clutter background is proved in this paper, when the shape parameter of probability density function is known. Both the detection performance expressions with non-fluctuating target and the ADT (average decision threshold) expressions of the OS-CFAR detector are derived. Finally, the optimal order value and the signal-clutter-ratio losses compared with ideal CFAR of the OS-CFAR detector are discussed by numerical method when the number of reference cells is taken different values. |
| |
| Keywords: | Radar Log-normal distributed clutter OS-CFAR CFAR loss |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
