计算机工程 ›› 2012, Vol. 38 ›› Issue (9): 231-233.doi: 10.3969/j.issn.1000-3428.2012.09.071

• 工程应用技术与实现 • 上一篇    下一篇

一种基于AD检验的CFAR检测器

徐从安a,简 涛a,孙伟超b,顾新锋a   

  1. (海军航空工程学院 a. 信息融合研究所;b. 研究生管理大队,山东 烟台 264001)
  • 收稿日期:2011-07-15 出版日期:2012-05-05 发布日期:2012-05-05
  • 作者简介:徐从安(1987-),男,硕士研究生,主研方向:信号检测与处理,计算机仿真;简 涛,讲师、博士;孙伟超,硕士研究生;顾新锋,博士研究生
  • 基金项目:
    国家自然科学基金资助项目(60672140);海军航空工程 学院青年科研基金资助项目(HYQN201013)

CFAR Detector Based on Anderson-Darling Test

XU Cong-an a, JIAN Tao a, SUN Wei-chao b, GU Xin-feng a   

  1. (a. Research Institute of Information Fusion; b. Graduate Students’ Brigade, Naval Aeronautical Engineering University, Yantai 264001, China)
  • Received:2011-07-15 Online:2012-05-05 Published:2012-05-05

摘要: 传统的恒虚警率(CFAR)检测器鲁棒性较差,为此,提出一种基于AD检验的CFAR检测器AD-CA。通过Monte Carlo仿真得到AD检验的临界值,并删除异常样本。仿真结果表明,在均匀背景下,AD-CA的检测性能与OS检测器相当;在多目标背景下,AD-CA的检测性能比OS检测器有所提升,当干扰目标个数大于N–k时,仍能保持较好的检测性能。

关键词: 雷达, 目标检测, 多目标背景, 恒虚警率, AD检验

Abstract: For solving the robust disadvantage of the existing Constant False Alarm Rate(CFAR) detectors, a new CFAR detector based on Anderson-Darling(AD) test called AD-CA is proposed. It takes the critical value of AD test through Monte Carlo simulation, then deletes the unwanted samples. It is evaluated through simulation in various environments. Simulation result shows that, in homogeneous background, the performance of AD-CA is as good as OS; In multiple targets background, compared with the OS, the detection performance of AD-CA improves obviously. Especially when the value of interfering targets exceeds N–k, it also keeps good performance.

Key words: radar, target detection, multiple targets background, Constant False Alarm Rate(CFAR), Anderson-Darling(AD) test

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