基于杂波分布特性的恒虚警率检测器设计  

Design of CFAR Detector Based on Clutter Distribution Characteristics

作　　者：洪伟 马艳艳 程义 HONG Wei;MA Yanyan;CHENG Yi(The 723 Institute of CSSC,Yangzhou 225101,China)

机构地区：[1]中国船舶集团有限公司第七二三研究所,江苏扬州225101

出　　处：《舰船电子对抗》2023年第4期89-93,97,共6页Shipboard Electronic Countermeasure

摘　　要：针对单元平均恒虚警率(CA-CFAR)检测器在非平稳环境下检测性能下降的问题,提出了一种基于杂波分布特性的自适应恒虚警率检测器设计方法。主要思路为:在已知背景杂波类别的前提下,选择相匹配的恒虚警率检测器来提高目标的检测性能。基于实测数据,通过在不同杂波类别的区域人工加运动目标的方式,经过与CA-CFAR检测结果的仿真实验对比,验证了所提恒虚警率检测器的有效性。For the detection performance of cell average-constant false alarm rate(CA-CFAR)detector will be reduced in non-stationary environment,this paper proposes a design method of adaptive CFAR detector based on the distribution characteristics of background clutter.The main idea is to select the matching CFAR detector to improve the detection performance of the target under the premise of known background clutter category.Based on the measured data,the effectiveness of CFAR detector proposed is verified through comparing with the simulation experiment of CACFAR detection results by means of manual+moving targets in the area of different clutter categories.

关 键 词：杂波模型 恒虚警率检测 海杂波 陆杂波 检测性能 

分 类 号：TN957.51[电子电信—信号与信息处理]