基于STK跟踪与数据中继卫星轨道设计与仿真

Design and Simulation of TDRS Orbit on STK

发展跟踪与数据中继卫星对于构建天基测控网有着重要意义。概述了跟踪与数据中继卫星的定义与任务,阐述了跟踪与数据中继卫星通常选择的轨道,分析了地球静止轨道(GEO)中继卫星的地面覆盖特性和两颗GEO星组网的轨道覆盖盲区,以及中低轨卫星组网的步骤。提出了利用STK仿真分析中继卫星星座构形的方法,设计了基于STK的适合我国的地球静止轨道、大椭圆轨道、近圆轨道三种轨道的中继卫星星座与中低轨用户星的可见性仿真试验,通过对仿真结果的分析提出了我国中继卫星星座构形的初步设想。

TDRS is very important to space test and control net. The paper summarizes the definition and task of TDRS. Then based on expatiation of orbit type of TDRS, the paper analyzes the ground coverage of GEO, the blind area of two GEO satellites constellation orbit coverage and the method of MEO/LEO constellation design. Besides, the paper puts out the method to realize simulation and analysis of the construction of TDRS constellation by using STK, designs a simulation experiment suitable for china to analyze and compute the accesses between MEO/LEO user satellites and TDRS which are at GEO, large ellipse orbit and approximate circular orbit. The primary idea for Chinese TDRS constellation is also brought forward through the analysis to simulation results.