GALILEO卫星导航和定位系统PDOP仿真

PDOP Simulation of the Galileo Navigation and Positional System

简单分析了GALILEO卫星导航和定位系统与GPS的差异及特点;利用STK软件,对GALILEO卫星导航和定位系统的PDOP进行了仿真计算,给出了部分世界城市的PDOP仿真结果以及一天时间内每分钟采样间隔下部分城市的PDOP变化曲线。

The Galileo Satellite Navigation and Positional System is a future global positional system, which will provide users all over the world with 3 dimensional position and velocity information. The theoretical concepts of the Galileo are almost the same as those of the GPS.Compared with the GPS, the Galileo has its advantages in greater orbital altitudes, slightly greater orbital inclination, more operational satellites and more transparent technical strategy, for example, no SA or AS. Herein, the difference and feature between the GALILEO and the GPS constellations are briefly analyzed. Using the STK software, the PDOP parameter for the GALILEO constellation is simulated. Simulation results for some world cities are tabulated. One - minute sampling simulation results in a solid day are presented for some geographically typical world cities.