摘要
视频SAR作为一种新型微波遥感体制,可用于对热点区域动态目标的持续监视。提出一种基于大角度聚束模式的视频SAR实现方法,分析视频SAR回波数据分割机理以及基于敏捷SAR卫星视频成像模式的姿态机动策略,并通过偏航补偿实现不同视频帧成像区域的无旋转控制,最终给出三轴期望姿态与姿态角速度。通过数学仿真验证上述姿态机动策略的有效性。
As a new microwave remote sensing mode, video SAR provides a continuous surveillance over a region of interest. An implementation method of video SAR based on spotlight SAR imaging mode is proposed in this study. The segmentation method of SAR raw data and the attitude maneuver strategy for video SAR are also discussed. Rotation between consecutive frames is avoided through yaw compensation, and Euler angles and angular rates are obtained based on theoretical analysis. Finally the simulation and numeric experiments verify the feasibility of the method and strategy.
作者
梁健
张润宁
王大伟
罗荣蒸
LIANG Jian;ZHANG Running;WANG Dawei;LUO Rongzheng(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《中国科学院大学学报（中英文）》
CSCD
北大核心
2019年第1期125-130,共6页
Journal of University of Chinese Academy of Sciences
基金
国家自然科学基金(41501364)资助
关键词
视频SAR
敏捷卫星
姿态机动
偏航补偿
video SAR
agile satellite
attitude maneuver
yaw compensation
