摘要： 基于卫星工具包(STK)进行运载火箭测控性能的仿真,同时考虑天基中继卫星与地基测站。定义并建立发射坐标系,设置时使用理论弹道及姿态数据。描述矢量和角度的定义,阐述相关测控性能参数的设置与获取步骤,给出典型示例,分析天地基测控覆盖率、测控性能、箭载
终端天线安装角对跟踪精度的影响。实验结果表明,基于STK的运载火箭测控性能仿真具有操作简便、仿真速度快、计算精准度高等特点,可对运载火箭测控性能进行总体快速评估。
关键词:
卫星工具包,
运载火箭,
中继卫星,
测控仿真,
坐标系,
安装角
Abstract: Considering both of space-based relay satellite and ground-based stations respectively,the measurement and control performance of the launch vehicle is simulated based on Satellite Tool Kit(STK).The establishment of the launching coordinate-system,the utilization of the trajectory and attitude data,the definitions of related vectors and angles,and the setting and measuring of related performance parameters are described.The representative illustration is given,with the analysis and discussion of some simulation results,such as the attaching angles of terminal antennae,the coverage and performance of space and ground integration,etc.It manifests that the STK based simulation,which proved
high-speed,high-resolution of computation and operative convenience,is profitable in the fast gross evaluation of rocket performance.
Key words:
Satellite Tool Kit(STK),
launch vehicle,
relay satellite,
measurement and control simulation,
coordinate system,
installation angle
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