摘要
针对传统卫星调度方法难以满足应急观测强时效性的问题,提出一种针对敏捷成像卫星的调度方法。首先动态计算敏捷卫星观测摆角、幅宽和持续时间,再以平行条带分割区域目标,获得最小姿态调整时间;在此基础上,设计等步长搜索算法求解对区域目标的最佳观测点。构建了包含4颗敏捷成像卫星的STK仿真场景,仿真结果说明该方法在提高观测目标覆盖率的同时减少了获取影像的时间。
Traditional satellite scheduling method has difficulties to meet the need for timely response in emergency observation missions. In this paper, an improved single-orbit scheduling method is proposed for agile imaging satellites as a tentative solution. This method first dynamically calculates the observation angle, swath, and duration of the agile imaging satellite. Cutting of area targets are then performed using parallel strip, followed by the acquisition of minimum attitude transition time. A specialized step-size search algorithm is employed to find the best observation point towards the area target. In our experiments, the STK simulation scenario is constructed with four agile imaging satellites. The simulation results show that the new method improves the coverage of area target while reduces the image acquisition time.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2014年第8期901-905,922,共6页
Geomatics and Information Science of Wuhan University
基金
国防预研基金资助项目(GFZX0404010502)~~
关键词
敏捷成像卫星
区域目标
单轨调度
动态分解
STK
agile imaging satellite
single-orbit scheduling
area target
dynamic decomposition
STK
