基于时间相关性的海面小目标检测技术  

Detection Technique of Dim Target in Sea Clutter Based on Time-Coherent Characteristic

作　　者：司军[1] 赵中兴[1] 吴俭[1,2] 洪伟[1] 陈永森[1] 

机构地区：[1]中国船舶重工集团第七二三研究所,江苏扬州225001 [2]海博威(江苏)科技发展有限公司,江苏扬州225001

出　　处：《雷达科学与技术》2016年第3期261-266,共6页Radar Science and Technology

基　　金：科技合作项目(No.2015DFR10560)

摘　　要：在雷达对海探测中,海杂波往往对小目标检测造成严重的干扰,近年来广泛研究的TBD、知识辅助、杂波重构等新技术尚未进入工程应用阶段。针对这一问题,提出了一种基于时间相关性的海面小目标检测技术,该技术利用了海杂波和目标在时间相关性上的差异,采用成组非相参积累级联杂波图迭代算法抑制强海杂波,在抑制海杂波的同时有效保留了目标信息,能够很好地实现海面小目标的检测。数据仿真和实测试验结果证明了这种技术的可行性和有效性。In sea detection by radar,the sea clutter often disturbs the dim target detection seriously.In recent years,the new techniques such as TBD,knowledge aid clutter reconstruction have not entered the stage of engineering application.To solve the problem,this paper presents a detection technique of dim target in sea clutter based on time-coherent characteristic.The technique takes advantage of different time-coherent characteristics of sea clutter and dim targets,then adopts grouped non-coherent accumulation cascaded clutter map iterativeness algorithm to suppress sea clutter.The technique suppresses sea clutter while saves target information effectively,which can primely realize dim target detection in sea clutter.Data simulation and experimental results proved the feasibility and efficiency of the technique.

关 键 词：海杂波抑制 时间相关性 成组非相参积累 杂波图迭代 

分 类 号：TN959.72[电子电信—信号与信息处理]