| 北斗卫星导航系统的星座及XPL性能分析 |
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| 引用本文： | 杨鑫春,李征航,吴云.北斗卫星导航系统的星座及XPL性能分析[J].测绘学报,2011(Z1):68-72. |
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| 作者姓名： | 杨鑫春 李征航 吴云 |
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| 作者单位： | 武汉大学测绘学院; |
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| 基金项目： | 国家863计划(2009AA12Z301); 武汉大学卫星导航与定位教育部重点实验室开放基金(GRC-2009008) |
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| 摘 要： | 分析北斗卫星导航系统的组成结构,就系统在中国大陆区域内卫星的可见性、DOP值和定位精度进行仿真分析。借鉴SBAS完备性算法的原理分析在中国大陆区域内北斗卫星导航系统所能提供的XPL性能指标。表明在单频条件下,中国大陆区域内仿真的Compass系统能满足APV-Ⅰ飞行阶段的完备性要求。
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| 关 键 词： | 北斗卫星导航系统 可见性 精度因子 定位精度 完备性 用户保护水平 |
The Performance Analysis of Constellation and XPL for Compass |
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| YANG Xinchun,LI Zhenghang,WU Yun School of Geodesy , Geomatics,Wuhan University,Wuhan ,China.The Performance Analysis of Constellation and XPL for Compass[J].Acta Geodaetica et Cartographica Sinica,2011(Z1):68-72. |
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| Authors: | YANG Xinchun LI Zhenghang WU Yun School of Geodesy Geomatics Wuhan University Wuhan China |
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| Institution: | YANG Xinchun,LI Zhenghang,WU Yun School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China |
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| Abstract: | Structure of the Compass is analyzed.Then the system′s visibility,DOP value and position accuracy in China mainland are simulated and analyzed.According to the features of the system′s constellation and referring the principle of space-based augmentation system′s integrity algorithm,the XPL value which the system can provide in China mainland is analyzed.The conclusion shows that the Compass can provide the integrity of APV-Ⅰin China mainland under a single frequency. |
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| Keywords: | Compass navigation satellite system visibility DOP position accuracy integrity XPL |
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