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| 近地卫星星历的高精度星载算法研究 | |
| 引用本文： | 张晓坤,刘迎春,杨新,林宝军.近地卫星星历的高精度星载算法研究[J].航天控制,2005,23(4):41-44. |
| 作者姓名： | 张晓坤 刘迎春 杨新 林宝军 |
| 作者单位： | 1. 中国科学院空间科学与应用研究中心,北京,100080;中国科学院研究生院,北京,100049 2. 中国科学院空间科学与应用研究中心,北京,100080 3. 中国科学院光电研究院,北京,100080 |
| 摘 要： | 随着星载计算机系统结构和性能的改善,利用星载计算机实现高精度的星历计算成为可能。本文针对近地轨道卫星提出了一种适合星上轨道预报的数值算法。通过采用简化的动力学模型和一种嵌套插值算法的积分器,有效提高了计算效率,降低了对星载计算系统的性能要求,从而实现高精度的卫星星历星载计算。该算法在星载计算机系统平台上进行仿真验证的结果表明,对于某飞行器可实现轨道预报1天优于1km的星历计算。 |
| 关 键 词： | 近地卫星 星历 轨道预报 数值积分 星载算法 |
| 文章编号： | 1006-3242(2005)04-0041-04 |
| 修稿时间： | 2005年3月4日 |
An Onboard Precise Orbit Prediction Algorithm for Low Earth Orbit Spacecraft |
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| Zhang Xiaokun,Liu Yingchun,Yang Xin,LIN Baojun.An Onboard Precise Orbit Prediction Algorithm for Low Earth Orbit Spacecraft[J].Aerospace Control,2005,23(4):41-44. | |
| Authors: | Zhang Xiaokun Liu Yingchun Yang Xin LIN Baojun |
| Institution: | Zhang Xiaokun 1,3 Liu Yingchun1 Yang Xin2 Lin Baojun2 1.Center for Space Science and Applied Research,Chinese Academy of Science,Beijing 100080 2.Academy of Opto-electronics,Chinese Academy of Science,Beijing 100080 3.Graduate School,Chinese Academy of Science,Beijing 100049 |
| Abstract: | With the great improvement of system structure and performance for onboard computers, it is feasible to predict precise orbits onboard. In this paper, a numerical algorithm for onboard orbit prediction is presented for a low earth orbit (LEO) spacecraft. The efficiency of orbit calculation is improved by the simplified dynamics and the RK4 integrator combined with an interpolation algorithm. As a result, the accurate orbit prediction becomes available onboard. The algorithm is evaluated in the on-board computer system. The results show that the position error of orbit propagation in one day for the orbit module of a spacecraft is less than 1km. |
| Keywords: | LEO spacecraft Satellite ephemeris Orbit prediction Numerical integration Onboard algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |