对地观测小卫星轨道机动仿真研究

Orbital Maneuver Simulation for Small Earth Observation Satellite

针对我国对地观测小卫星的轨道机动任务要求,该文设计了轨道机动的软件模块和主要程序。该套软件设计的目的是为了能使卫星在最短的时间内由平时轨道机动到战时轨道。该套软件根据卫星轨道调整前后的轨道参数特点和轨道调整后的星下点轨迹要求,确定机动时间,将调整轨道半长轴与微调星下点轨迹结合起来,在最短时间内完成轨道调整任务。最后根据某对地观测小卫星的任务和技术指标要求,仿真其轨道机动过程。仿真结果表明,该系统具有很高的实用价值。

According to the requirements of our Earth observation satellite＇s orbital maneuver mission, this paper designs and implements the software module and primary program for orbital maneuver. Its purpose is to accomplish orbital maneuver mission in shortest time. The software determines maneuver time by considering the adjustment of semi - major axis and ground track. In the end, this paper simulates the maneuver process of a given satellite. The result shows that the maneuver system is practicable and can be employed in engineering, which successfully accomplishes the mission in relatively short time.