机载雷达海面舰船目标ISAR成像技术研究  

A Study on ISAR Imaging of Ship Targets on Sea for Airborne Radar

作　　者：徐佳龙[1] 

机构地区：[1]海军驻南京地区航空军事代表室,南京210039

出　　处：《现代雷达》2010年第4期39-41,共3页Modern Radar

摘　　要：利用ISAR/SAR技术获得海面舰船目标的二维像是实现舰船目标分类识别的重要手段。文中研究了高海情条件下的机载雷达舰船目标ISAR成像方法,包括基于迭代相关的包络对齐、改进的"秩一"自聚焦相位补偿及利用"clean"技术的多分量调幅-调频信号参数估计的瞬时成像方法。实测数据成像结果证明了算法的可行性。ISAR imaging technology is an important method of classification and recognition for ship targets.In this paper an airborne radar ISAR imaging algorithm for ship targets at high sea state is proposed.It consists of range profile alignment by iterative cross-correlation,phase compensation by the improved ＂ROPE＂auto-focus technique and an instantaneous imaging method by parameter estimation of multi-component AM-LFM signals on the basis of ＂clean＂ technique.The imaged result of radar data verifies the validity of methods proposed in this paper.

关 键 词：高海情 机载雷达 舰船目标 ISAR成像 

分 类 号：TN958[电子电信—信号与信息处理] TN957[电子电信—信息与通信工程]