基于模糊积累的距离扩展目标CFAR检测  

CFAR Detection of Range-extended Target Based on Fuzzy Accumulation

作　　者：范丛旺[1] 向家彬[2] 徐向东[2] 

机构地区：[1]空军雷达学院研究生管理大队,武汉430019 [2]空军雷达学院空天基预警监视装备系,武汉430019

出　　处：《空军雷达学院学报》2009年第4期266-268,272,共4页Journal of Air Force Radar Academy

摘　　要：采用传统的统计检测方法对宽带高分辨雷达(HRR)的距离扩展目标进行检测时,目标回波的全部能量不能得到充分利用,影响了雷达的检测性能.模糊逻辑检测可利用目标有无对应于不同的隶属度进行判决,比统计检测方法更能充分利用观测信息.在对二进制积累检测方法分析的基础上,提出了一种基于模糊积累的检测方法,导出了检测性能的解析式.仿真结果表明,该方法的检测性能明显优于双门限二进制积累检测方法的检测性能。The energy of target＇ s echoes can not be sufficiently utilized when using the conventional statistical detection methods to detect the range-extended target ofwideband high resolution radar （HRR）, which affects the performance of radar detection. Since fuzzy logic detection can make decisions by using the different degree of membership that corresponds to the target-present or no target, it makes fuller use of the observed echoes information than the conventional method. A fuzzy accumulation-based detection method was proposed in terms of analyzing the approach of binary accumulation detection, and the analytic expression of detection performance derived. By simulation it shows that the detection performance of using the proposed method is much better than that of the dual threshold binary accumulation one.

关 键 词：距离扩展目标 隶属函数 恒虚警率 模糊积累:检测性能 

分 类 号：TN957.71[电子电信—信号与信息处理]