Performance analysis of typical airports' BDS based on STK
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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.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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Key words:
- BDS /
- STK /
- GDOP /
- visible satellite /
- satellite navigation
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