| 基于STK的典型机场BDS性能分析 |
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| 引用本文： | 倪博文.基于STK的典型机场BDS性能分析[J].全球定位系统,2020,45(5):46-50. |
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| 作者姓名： | 倪博文 |
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| 作者单位： | 中国民用航空华北地区空中交通管理局天津分局技术保障部雷达导航室 ,天津300300 |
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| 摘 要： | 为分析北斗卫星导航系统(BDS)在我国机场的导航性能,通过卫星仿真工具包(STK)建立了BDS星座,仿真并分析了11个典型机场的卫星可见星数和几何精度衰减因子(GDOP)的值．仿真结果表明,BDS在多数典型机场拥有较多的可见星数目与较低的GDOP值,通过对比GDOP值对应的定位精度分级表,得出BDS在国内大部分典型机场能够提供优级的导航服务,为利用BDS实施进近提供了良好的技术支撑.
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| 关 键 词： | BDS STK GDOP 可见星 卫星导航 |
Performance analysis of typical airports' BDS based on STK |
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| Institution: | Tianjin Sub-bureau of North China Regional Air Traffic Management Bureau.CAAC Radar And Navigation Section Of Technical support department,Tianjin 300300, China |
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| Abstract: | In order to analyze the navigation performance of BeiDou Navigation Satellite System (BDS) at airports in China,the BDS constellation is established by use of the Satellite Simulation Toolkit (STK),and the number of visible satellites and the geometry dilution of precision (GDOP) at 11 typical airports are simulated and analyzed.The simulation results show that there are more visible satellites and lower GDOP values for the BDS at most typical airports. By comparing the results with the table the GDOP values correspond to the positioning accuracy classification,it can be concluded that the BDS can provide superior navigation services at most typical airports in China,and the good technical support for the implementation of approach can be provided with the BDS. |
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