| 编队小卫星间相对测距和时间同步方法研究 |
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| 引用本文： | 马宏,王元钦,陈谷仓.编队小卫星间相对测距和时间同步方法研究[J].装备指挥技术学院学报,2006,17(2):67-71. |
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| 作者姓名： | 马宏 王元钦 陈谷仓 |
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| 作者单位： | 装备指挥技术学院,测控工程研究中心,北京,101416 |
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| 摘 要： | 介绍了编队飞行小卫星的特点,提出采用无线电双向单程测距方法实现星间相对测距和时间同步,计算了伪码和载波相位跟踪环路、星间相对运动、钟差变化、测量设备延迟、天线相位中心误差带来的星间相对测距和时间同步误差,讨论了降低误差的方法.对误差项进行综合分析后,得出星间相对测距误差可达到厘米级,时间同步测量误差优于0.1 ns的结论.
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| 关 键 词： | 编队飞行小卫星 时间同步 双向单程测距 |
| 文章编号： | 1673-0127（2006）02-0067-05 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005年10月10 |
Research on Relative Ranging and Time Synchronization Between Formation Flying Small Satellites |
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| MA Hong,WANG Yuanqin,CHEN Gucang.Research on Relative Ranging and Time Synchronization Between Formation Flying Small Satellites[J].Journal of the Academy of Equipment Command & Technology,2006,17(2):67-71. |
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| Authors: | MA Hong WANG Yuanqin CHEN Gucang |
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| Abstract: | The paper introduces the character of formation flying small satellites, and then puts forward a design method for inter-satellite relative ranging and time synchronization. The author ana lyzes the ranging and time synchronization error due to the error of code and carrier phase tracing loop, and the error of relative motion of satellites and the change of time-tag between satellites. The time delay error of the radio tracing and instrumentation in satellites and the antenna phase center error are introduced. The method for reducing those errors is discussed. In the end, the author analyzes the results and obtains the error of relative ranging being less than lOcm and the error of time syn chronization being no more than 0. 1 ns. |
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| Keywords: | formation flying small satellites time synchronizations dual one-way ranging |
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