外场实测数据的舰船目标ISAR成像  

ISAR SHIP IMAGING OF REAL DATA

作　　者：邢孟道[1] 保铮[1] 

机构地区：[1]西安电子科技大学雷达信号处理重点实验室,西安710071

出　　处：《电子与信息学报》2001年第12期1271-1277,共7页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(No:69831040);电科院资助课题

摘　　要：有关飞机目标的ISAR成像国内已有较深入的研究。对水面舰船的雷达成像在国防上同样有重要意义,但国内对舰船的ISAR成像的研究,基本上为空白状态。虽然舰船成像与飞机成像在基本原理上没有区别,但由于海水的波动,使舰船的姿态变化比较复杂,有必要作专门的研究。该文是作者利用外场实测数据,针对舰船运动的特殊性,提出基于“Clean”的调幅-线性调频(AM-LFM)信号参数估计的方法,获得舰船目标的距离-瞬时多普勒动态像。ISAR imaging of airplane has been researched thoroughly in China. But research on ISAR imaging for ship, which is also very important in national defense, is very little. Although the difference is little in principle between airplane imaging and ship imaging, the pose variation of ship is more complicate for the fluctuation of sea, so it need to be studied specially. This paper employs Range-Instantaneous Doppler Algorithm (RIDA) based on multicompo-nent Amplitude Modulation and Linear Frequency Modulation (AM-LFM) signal parameter estimation method to obtain good ship ISAR images from real data.

关 键 词：舰船成像 调幅-线性调频信号 逆合成孔径雷达 实测数据 雷达成像 

分 类 号：TN951[电子电信—信号与信息处理]