高精度航天器轨道预报仿真软件的研制

Development of Simulation Software for High Precision Spacecraft Orbit Prediction

在航天器的设计过程中,必须要对轨道飞行状态进行预报,以确保航天器的正常运行。高精度轨道预报仿真软件是对航天器轨道进行预报的重要工具。首先简要介绍了航天器轨道预报的理论基础,详细阐述了航天器轨道动力学模型的建立方法,接着研究了高精度航天器轨道预报仿真软件的设计思路,提出了软件的实现方法,最后介绍了利用C++语言开发的适合航天器轨道预报仿真的航天器轨道计算工具软件包"Spacecraft Orbit Calculation Tool(SOCT)",并利用STK软件对SOCT进行测试验证,结果表明SOCT达到了高精度航天器轨道预报仿真的要求。

Spacecraft orbit prediction is very necessary in the process of spacecraft design, and high precision orbit prediction simulation software is a very important tool for spacecraft orbit prediction. In this paper the theory of spacecraft orbit prediction was briefly introduced. The method for modeling spacecraft orbit dynamics was presented in detail. The idea of designing high precision spacecraft orbit prediction simulation software was studied, and how to realize such software was given. At last, a software called ＂Spacecraft Orbit Calculation Tool （SOCT）＂ was introduced and tested by Satellite Tool Kit（ STK）, which proved that SOCT has achieved the standard of high precision orbit prediction.