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5米S-SAR卫星星地数传链路对接试验完成(图)
5米 S-SAR卫星 星地数传链路 对接试验
2021/4/6
2021年3月30日至4月2日,5米S-SAR卫星星地数传链路对接试验在中国科学院空天信息创新研究院(以下简称“空天院”)中国遥感卫星地面站三亚站顺利完成。此次试验由空天院组织,中国航天科技集团公司第五研究院航天东方红卫星有限公司和西安分院、中国资源卫星应用中心、应急管理部国家减灾中心等单位组成联合试验组共同完成。星地数传链路对接试验的目的是验证卫星与地面数据接收系统间数据传输的匹配性与正确性,是...
敏捷SAR卫星视频成像模式的姿态机动策略
视频SAR 敏捷卫星 姿态机动 偏航补偿
2019/4/18
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。
AN INTERFEROMETRIC PROCESSING METHOD TO MAINTAIN BOTH ACCURACY AND RESOLUTION OF DEM USING GAOFEN-3 SAR DATA
Gaofen-3, TanDEM-X, DEM, multi-look
2018/5/14
Gaofen-3 (GF-3) is the only in-orbit SAR satellite of China civilian fields. It is designed especially for ocean observation but not for interferometric applications. However, during the past one and ...
STRUCTURAL INFORMATION DETECTION BASED FILTER FOR GF-3 SAR IMAGES
GF-3 SAR images despeckling filter adaptive windowing structural information
2018/5/15
GF-3 satellite with high resolution, large swath, multi-imaging mode, long service life and other characteristics, can achieve allweather and all day monitoring for global land and ocean. It has becom...
AIRCRAFT SEGMENTATION IN SAR IMAGES BASED ON IMPROVED ACTIVE SHAPE MODEL
SAR target segmentation aircraft ISOMAP
2018/5/16
In SAR image interpretation, aircrafts are the important targets arousing much attention. However, it is far from easy to segment an aircraft from the background completely and precisely in SAR images...