摘要
简要介绍卫星过顶跟踪时出现的盲区现象和常用的卫星过顶跟踪天线座结构形式,理论上推导了三轴跟踪系统的程序跟踪算法。针对A+E+TIL形式的无盲区跟踪系统,推导了其过顶跟踪时产生的交叉耦合对跟踪性能的影响,并提出了解决方法。仿真结果表明,该方法可以有效提高系统跟踪精度。
Both the blind zone and the widely employed structures of antenna pedestal in satellitic tracking during zenith pass are briefly reviewed,algorithm for program tracking of three-axis tracking system is derived theoretically. Aiming at no-blind zone tracking system by A ＋ E ＋ TIL structure,influence on tracking performance by mutual coupling during zenith pass is analyzed. A solution is presented,and simulation results show it could effectively improve the accuracy of tracking system.
出处
《宇航计测技术》
CSCD
2017年第4期20-24,共5页
Journal of Astronautic Metrology and Measurement
关键词
过顶跟踪
坐标变换
误差分析
误差补偿
Zenith tracking
Coordinate transformation
Error analysis
Error compensation
