卫星遥测数据驱动的轨道实时仿真方法
Orbit Online Simulation Method Driven by Satellite Telemetry Data
王涛 1王新波 1尹文浩 1张颂1
作者信息
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.
Abstract
To satisfy the requirement of the satellite online simulation,the orbit propagation method based on sat-ellite 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 com-putation efficiency by optimizing the propagation frequency and integral step.And the method of relative orbit propa-gation 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.
关键词
轨道推算/龙格-库塔/轨道摄动/在线仿真/遥测Key words
Orbit extrapolation/Runge-kutta/Orbit Perturbation/Online simulation/Telemetering引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据