| 导航星座中的载波相位星间精密测距技术 |
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| 引用本文： | 杜志远,刘会杰.导航星座中的载波相位星间精密测距技术[J].计算机工程与应用,2011,47(13):139-142. |
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| 作者姓名： | 杜志远 刘会杰 |
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| 作者单位： | 中国科学院,上海微系统与信息技术研究所,微小卫星工程中心,上海,200050 |
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| 摘 要： | 卫星导航系统受到越来越多国家的重视,而自主导航无疑是其中的核心技术之一。基于24/3/2构型的MEOWalker星座,分析了伪码测距技术的原理与局限性,在此基础上探讨了载波相位测距技术,以及其中周跳的检测与修复、整周模糊度求解问题,结合星间链路特点提出了两种相应的解决思路,即载波相位平滑伪码测距技术、双频载波相位联合伪码测距技术,对研究具有自主导航功能的全球导航系统具有一定意义。
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| 关 键 词： | 自主导航 星间链路 精密测距 伪码测距 载波相位测距 |
| 修稿时间： | |
Accurate carrier-phase inter-satellite ranging in navigation system |
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| DU Zhiyuan,LIU Huijie.Accurate carrier-phase inter-satellite ranging in navigation system[J].Computer Engineering and Applications,2011,47(13):139-142. |
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| Authors: | DU Zhiyuan LIU Huijie |
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| Affiliation: | Engineering Center for Microsatellites,Shanghai Institute of Microsystem and Information,Chinese Academy of Sciences,Shanghai 200050,China |
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| Abstract: | More and more countries are attaching importance to satellite navigation system,and autonomous navigation is one of the key technologies.Based on 24/3/2 MEO Walker satellite system,this paper analyzes the theory and shortages of PRN ranging,carrier phase ranging along with relevant detection and recovery of cycle-slip.Ambiguity resolution is also introduced.In addition,carrier-phase smoothing PRN ranging and double frequency ambiguity resolution are specifically introduced,which would be meaningful for development of global navigation satellite system |
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| Keywords: | autonomous navigation inter-satellite crosslink accurate ranging Pseudo Random Noise code （PRN） ranging carrier phase ranging |
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