基于周期延拓的目标抽取像拼接算法  

The Pick-up Algorithm Based on Period Extension

作　　者：杨永侠[1] 王坤[1] 刘铮[2] 

机构地区：[1]西安工业大学电子信息工程学院,陕西西安710032 [2]西安电子科技大学,陕西西安710071

出　　处：《探测与控制学报》2007年第4期69-73,共5页Journal of Detection & Control

摘　　要：针对步进频率雷达目标一维距离像中存在像分裂现象的问题,研究了抑制像分裂现象的方法,分析了目标抽取算法和周期延拓法的优缺点,提出了基于周期延拓的目标抽取像拼接算法。该算法在大尺寸目标和目标运动时都得到目标完整、正确的一维距离像。理论分析和仿真结果表明,提出的新算法具有适用面广,实时计算量小,易于实现等优点。In view of the phenomenon of profile splicing that exists in a range profile of target based on stepped- frequency pulses radar （SFR）,the suppression to this phenomenon is studied and the advantages and shortcomings of the target pick-up algorithm and the period extension algorithm are analyzed and the pick-up algorithm based on period extension is presented in this article. A high resolution range profile of the target, which is moving with a high speed and has a bigger size, can be obtained by the new algorithm. Theoretical analysis and the simulation results show that the new algorithm has the advantages of wide application, less real time calculation and easy to realize.

关 键 词：周期延拓 像拼接算法 像分裂 目标抽取算法 

分 类 号：TN959.16[电子电信—信号与信息处理]