对两种卫星导航系统性能进行的几点比较

Comparisons between BDS and Galileo Based on GSSF Software

首先介绍了我国自主研发的北斗卫星导航系统与欧洲的伽利略卫星导航系统的组成及发展现状,然后从系统参数、定位精度、衰减因子值和可见星数等方面对比分析了两个系统的性能,得出了一些有益结论。作为欧盟建立伽利略卫星导航系统的主要合作伙伴,在加快建设我国的北斗卫星导航系统的同时,积极参与、开发伽利略卫星导航系统在我国的应用具有重要的意义。

First this paper introduces the composition and status of BeiDou navigation satellite system(BDS)and Galileo navigation satellite system(Galileo)developed independently by China and Europe,then comparatively analyzes the performance of the two systems in the aspects of the parameters of the system,the positioning accuracy,the value of dilution of precision(DOP)and the number of visible satellites,some useful results are obtained.As the main partner of Galileo,while accelerating the construction of BDS,actively participating and developing the application of Galileo in our country are significant for us.