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 ROPEauto-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...

TN958