摘要
为了满足卫星在线仿真需求,提出基于卫星遥测数据的轨道仿真计算方法。针对轨道动力学特性和仿真精度要求,选取了合适的数值积分方法。设计了遥测数据实时驱动下的轨道推算方法,通过优化轨道更新频率和合理设置积分步长,提高了运算效率。并基于此进一步设计了相对轨道推算方法,能够为卫星协作或对抗仿真提供支撑。提出的方法减小了在线计算量,采用某颗低轨卫星GNSS轨道数据进行验证,计算速度和精度能够满足多星在线仿真需求。
To satisfy the requirement of the satellite online simulation,the orbit propagation method based on satellite telemetry data was studied.Firstly,the appropriate numerical integration method was selected according to the orbit dynamics characteristic.Then,the method of orbit online propagation was designed,which can improve the computation efficiency by optimizing the propagation frequency and integral step.And the method of relative orbit propagation was further designed,which is favorable for the mission of satellites cooperation.Usingthe GNSS orbit data of a LEO satellite to verification,the calculation speed and calculation accuracy of the method can meet the requirement of engineering application.
作者
王涛
王新波
尹文浩
张颂
WANG Tao;WANG Xin-bo;YIN Wen-hao;ZHANG Song(32032 Army of People's Liberal of Army,Beijing100094,China)
出处
《计算机仿真》
2024年第1期74-77,共4页
Computer Simulation
关键词
轨道推算
龙格-库塔
轨道摄动
在线仿真
遥测
Orbit extrapolation
Runge-kutta
Orbit Perturbation
Online simulation
Telemetering
