摘要
从卫星姿态的角度,提出了一种考虑主星二维导引的InSAR编队卫星波束覆盖同步策略,可实现约100%的波束重叠覆盖。分析了该策略下主从两颗卫星图像的多普勒中心频率以及对后期图像干涉处理的影响。提出了一种综合考虑全零多普勒和波束同步的姿态规划策略,在保证双星多普勒中心频率均为零情况下可使编队对地观测有效区域最大。
A beam overlap synchronization strategy considering attitude steering of the main satellite was proposed in this paper, which could achieve about 100% of beam overlap synchronization. Doppler centroid frequency of the formation and its influence on the treatment of the image interference were analyzed. The attitude strategy which would balance zero Doppler centroid frequency and beam synchronization was presented. The strategy could make viewing area maximum on the premise that the Doppler centroid frequency of satellites were all zero.
出处
《上海航天》
2015年第2期22-27,共6页
Aerospace Shanghai
关键词
InSAR编队
波束覆盖同步
多普勒中心频率
姿态导引
.InSAR formation
Beam overlap synchronization
Doppler centroid frequency
Attitude steering
