基于检测单元统计量的SOS-CFAR检测器  

A SOS-CFAR detector based on test cell statistics

作　　者：韩东娟 谭小敏[1] 史平彦[2] HAN Dong-juan;TAN Xiao-min;SHI Ping-yan(China Academy of Space Technology(Xi'an),Xi'an 710000,China;China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国空间技术研究院西安分院,陕西西安710000 [2]中国空间技术研究院,北京100094

出　　处：《电子设计工程》2019年第2期29-33,共5页Electronic Design Engineering

摘　　要：文中提出了一种基于检测单元统计量的SOS-CFAR检测器,该检测器利用检测单元采样来选取参考单元,在S-CFAR的基础上结合OS-CFAR检测器,有效地将两者结合起来。文中在均匀杂波背景下利用数学工具分析了该检测器的检测性能,给出了均匀背景下的检测概率表达式。文中利用Monte-Carlo仿真方法分析了该检测器在均匀背景下、多目标环境和杂波边缘环境中的检测性能,并与其他类型的检测器进行比较。仿真结果表明:在均匀背景下,该检测器性能接近CACFAR检测器,在多目标环境和杂波边缘环境下也具有较好的鲁棒性。In this paper,a SOS-CFAR detector based on the detection unit statistics is proposed.The detector uses the sampling unit to select the reference unit and effectively combines the S-CFAR detector with the OS-CFAR detector.The mathematical analysis of the algorithm and the detection probability expressionin a uniform background is given in the paper.The Monte Carlo simulation method was used to analyze the detection performance under uniform background,multi-target background and clutter edge situation.The simulation results show that the SOS-CFAR detector has the similar performance to the cell average CFAR detector under the uniform clutter backgroundand has good robustness under multitarget situation and clutter edge situation.

关 键 词：SOS-CFAR S-CFAR 检测统计量 多目标干扰 

分 类 号：TN911.7[电子电信—通信与信息系统]