星载滑动聚束SAR的成像性能  

Imaging Performance of Spaceborne Slip SAR

作　　者：王万林[1] 谭小敏[1] 田栋轩[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2017年第3期20-26,共7页Space Electronic Technology

摘　　要：针对星载滑动聚束成像模式SAR,分析了系统方位分辨率和成像带宽提高的基本原理;针对分辨率、成像带宽、系统灵敏度、距离模糊度、方位模糊度等系统关键性能参数,进行了理论分析和研究,并提出了系统灵敏度、距离模糊度、方位模糊度等性能参数的计算方法;进行了计算机仿真,仿真结果证明了所提方法的有效性。For the spaceborne slip SAR mode, this paper study the principle of improving the azimuth resolution and theazimuth imaging width simultaneously firstly, propose the method of computing the azimuth resolution, the azimuth imagingwidth, the system sensitivity, the range ambiguity and the azimuth ambiguity latterly, and give the computer simulation ofcomputing system sensitivity, the range ambiguity and the azimuth ambiguity of the real spaceborne high resolution slip SARsystem lastly, the result prove the effectiveness of the proposed method.

关 键 词：滑动聚束SAR 分辨率 成像带宽 系统灵敏度 距离模糊度 方位模糊度 

分 类 号：V474[航空宇航科学与技术—飞行器设计]