太阳同步轨道遥感卫星快速目标访问计算方法
Fast Calculation Method for Target Access Time of Sun Synchronous Orbit Remote Sensing Satellite
彭会湘 1刘刚 1陈金勇 1陈韬亦 1李烁1
作者信息
- 1. 中国电子科技集团公司第五十四研究所,河北石家庄 050081
- 折叠
摘要
目标访问计算是指根据遥感卫星轨道和待观测目标的位置,计算遥感卫星对目标观测的时刻和姿态,是遥感卫星任务管控领域的重要基础技术之一.高效的目标访问计算方法可大幅提升卫星任务管控的时效性,对后续大规模遥感星座任务管控具有重要意义.利用太阳同步轨道卫星交点地方时不变的特点,快速估算出卫星经过目标的较短时间窗口,对时间窗口内的星历进行逐点计算,获取卫星对目标进行访问的最佳时刻.试验结果证明,该方法可大幅提升目标访问时间的计算效率.
Abstract
Target access calculation refers to the calculation of observation time and attitude of remote sensing satellites towards the target based on the orbit of remote sensing satellites and the position of the target to be observed.It is one important basic technology in remote sensing satellite task control.An efficient target access calculation method can significantly improve the timeliness of satellite task management,which is of great significance for subsequent large-scale remote sensing constellation task management.By utilizing the characteristic of constant local time at the intersection of solar synchronous orbit satellites,a shorter time window for the satellite to pass through the target can be quickly estimated,and then the ephemeris within the time window can be calculated point by point to obtain the optimal time for the satellite to access the target.Experimental results demonstrate that this method can significantly improve compu-tational efficiency of target access time.
关键词
遥感卫星/目标访问/太阳同步轨道/地方时Key words
remote sensing satellites/target access/sun synchronous orbit/local time引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据