摘要
为了进一步提高量子定位系统的精度,根据量子定位系统中发射端卫星和接收端卫星均在运动的情况,提出一种卫星间链路的超前瞄准角跟踪补偿方法:分析在量子导航定位系统中不同链路的超前瞄准角跟踪补偿情况,并对各自特点进行对比;再根据卫星轨道坐标系下发射端卫星和接收端卫星的位置计算地心惯性系下2颗卫星的相对位置,转换到卫星星上俯仰坐标系计算出超前瞄准角,并分析超前瞄准点在精跟踪探测器中的坐标转换关系;然后根据反射镜有效反射面积计算超前瞄准角对链路中量子接收效率的影响;最后,设计补偿方案并采用矩阵实验室(MATLAB)进行卫星轨道和超前瞄准角仿真,计算出需要补偿的随时间变化的方位角和俯仰角。
In order to further improve the accuracy of the quantum positioning system,in view of the situation that both the transmitting satellite and the receiving satellite are moving in the quantum positioning system,the paper proposed a tracking compensation method of the inter satellite link point ahead angle:the tracking compensation status of point ahead angles of different links in quantum navigation and positioning system was analyzed,and their characteristics were compared;and the relative positions of the two satellites in the geocentric inertial system were calculated according to the positions of the transmitting and receiving satellites in the satellite orbital coordinate system,then converted into the satellite on-board pitch coordinate system to calculate the point ahead angle of the inter satellites link,and the coordinate transformation relationship of the point ahead dot in the precision tracking detector was analyzed;next,the impact of the point ahead angle on the quantum receiving efficiency in the link based on the effective reflection area of the reflector was calculated;finally,the compensation scheme was designed,and the satellite orbit and the point ahead angle were simulated by MATLAB,and the azimuth and pitch angles that need to be compensated over time were calculated.
作者
汪泳钦
丛爽
WANG Yongqin;CONG Shuang(Department of Automation,University of Science and Technology of China,Hefei 230027,China)
出处
《导航定位学报》
CSCD
2023年第2期80-91,共12页
Journal of Navigation and Positioning
基金
国家自然科学基金项目(61973290)。
关键词
量子定位系统
卫星间链路
超前瞄准角
卫星轨道
跟踪补偿
quantum positioning system
inter satellite link
point ahead angle
satellite orbit
tracking compensation
