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

作　　者：彭会湘[1] 刘刚[1] 陈金勇[1] 陈韬亦[1] 李烁 PENG Huixiang;LIU Gang;CHEN Jinyong;CHEN Taoyi;LI Shuo(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2024年第4期730-738,共9页Radio Communications Technology

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。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 computational 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 

分 类 号：V412.42[航空宇航科学与技术—航空宇航推进理论与工程]