摘要
由于受到城市中高大建筑的干扰,车辆能接收到的GPS卫星信号数量较少,导致其系统可用性和导航定位精度都比较差。为了改善这一局限,将Galileo卫星信号和GSM网络的BTS站点提供的导航信息与GPS进行组合车辆导航。文章从理论上论述了GPS/Galileo/BTS组合导航模式的可行性,进而分别通过静态和动态2种模式对组合系统在城市定位环境中的可用性和精确性进行了仿真。结果表明GPS/Galileo/BTS组合导航模式能大大改善系统的可用性和精确性。
The performance of the GPS based vehicle navigation will be degraded in the urban region de to the reduce of skyscrapers and other high buildings. In order to improve this limit, the integration of GPS with Galileo and BTS was designed. This paper analyses it＇s availability and accuracy in urban vehicle navigation through dynamical and statical model. The simulation results show that integrated GPS navigation improve system availability and accuracy greatly.
出处
《现代交通技术》
2009年第3期85-88,共4页
Modern Transportation Technology
基金
Jeagal(Jiont European-Asian Educational and Application Development Program on GALileo)资助项目:欧亚伽利略联合教育和应用发展项目
