摘要
通过设计构建GALILEO/GPS系统仿真软件平台,从内、外符合精度两方面对GALILEO和GPS两种卫星导航系统的点定位精度等性能进行了定量地对比研究,并定性分析了产生不同结果的原因。研究表明:对同一测站而言,在相同观测期间内,基于GALILEO的位置误差与几何精度因子总和的解算结果都小于基于GPS的相应结果;基于GALILEO的高程方向的定位精度优于基于GPS的相应结果。
Based on GALILEO/GPS simulation software platform, the different characters of point positioning between GPS and GALILEO were compared and investigated quantitatively in view of internal and external accuracy. The reasons that led to different positioning performance were analyzed qualitatively as well. Results indicate that, for the same observatory station during similar time, PDOP and positioning errors based on GALILEO are obviously smaller than those based on GPS, and vertical precision based on GALILEO is higher than that based on GPS. In general, a better navigation and positioning performance can be achieved using GALILEO.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第10期2828-2831,共4页
Journal of System Simulation
基金
国家杰出青年科学基金(40625013)
国家自然科学基金(40674012)
国家863计划(2007AA12Z305,2007AA12Z311)
