摘要
文中分析了目标多维转动对 ISAR 成像的影响,进行了理论分析与推导并给出了实测数据.实际的目标(如飞机等)存在三维转动,只是在平稳飞行时,相对雷达视线蜕化为一维转动,这是传统逆合成孔径雷达(ISAR)对飞机一类目标成像的基础,即使飞机做不大的机动飞行,如民航机作较小转向,其俯仰或侧摆的转动影响也常常不能忽略,多维转动使成像画面失真,甚至不能辨识.因此,文中讨论的多维转动对目标成像影响是有实际意义的.
For a practical target,such as an airplane,there exist three dimensional rotations,which decay to one dimensional rotation related to LOS(Line of sight)of radar in ease of a smooth a flight.It is the base of conventional ISAR imaging.In fact,in case of a small flexible flight,such as a small turn of a civilian airplane,the influence of pitch and roll rotations can often be neglected,which can make the imaging plane distorted,and even unrecognized.So it is worth discussing the multi-dimensional rotations of a target in practical ISAR imaging.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第A00期19-26,共8页
Journal of Xidian University
基金
国防预研基金资助
关键词
ISAR成像
多维转动
雷达
目标
ISAR imagimg
range—doppler imaging
three dimensional rotation
yaw
roll
pitch
