| 朔月期间基于SEMOI的卫星自主导航方法研究 |
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| 引用本文： | 张燕,荆武兴.朔月期间基于SEMOI的卫星自主导航方法研究[J].上海航天,2006,23(4):8-12. |
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| 作者姓名： | 张燕 荆武兴 |
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| 作者单位： | 哈尔滨工业大学,航天学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为解决朔月期的卫星自主导航,提出了一种利用日地月光学信息(SEMOI)的实现方法。利用朔月期卫星-太阳方向矢量与卫星-地球方向矢量间夹角,由迭代最小二乘法估计历元时刻的卫星定位数据,并以轨道预报方式实现卫星自主导航。给出了计算流程。仿真结果表明,该法的定位精度可满足民用卫星的导航要求。最后讨论了采样周期和敏感器精度等因素对定位精度的影响。
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| 关 键 词： | 卫星自主导航 朔月 日地月光学信息 迭代最小二乘法 扩展卡尔曼滤波 定位精度 |
| 文章编号： | 1006-1630（2006）04-0008-05 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-09-012005-09-19 |
Research on Autonomous Navigation for Satellite during New-Moon Period Based on SEMOI |
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| ZHANG Yan,JING Wu-xing.Research on Autonomous Navigation for Satellite during New-Moon Period Based on SEMOI[J].Aerospace Shanghai,2006,23(4):8-12. |
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| Authors: | ZHANG Yan JING Wu-xing |
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| Institution: | College of Astronautics Engineering, Harbin Institute of Technology, Harbin Heilongjiang 150001, China |
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| Abstract: | An autonomous navigation using sun-earth-moon optical information for satellite during new-moon period was put forward in this paper.The iterative least square method was used to estimate the position data for the satellite at epoch time according to the angle between satellite-sun vector and satellite-earth vector during new-moon period in the method,and the autonomous navigation for satellite was implemented by orbit forecast.The algorithm flowchart was given.The simulation results showed that the positioning accuracy would meet the requirement for civil satellite.At last,the influence factors of sampling period and sensor precision on the positioning accuracy were discussed. |
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| Keywords: | Satellite autonomous navigation New-moon period Sun-earth-moon optical information Iterative least square method Extended Kalman filtering Positioning accuracy |
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