公开(公告)号：EP1247074A1

公开(公告)日：2002-10-09

申请号：EP01939988.0

申请日：2001-01-05

申请人： The Johns Hopkins University

发明人： LEVY, Larry, J. ,  THOMPSON, Thomas ,  HOHMAN, David, S. ,  MURDOCK, Thomas, M. ,  WESTERFIELD, Edwin, E. ,  HATTOX, Thomas, M. ,  KUSTERER, Thomas, L.

IPC分类号： G01C21/28 ,  G01C21/16 ,  G01S5/14

CPC分类号： G01S19/43 ,  B60T2201/08 ,  B60T2201/089 ,  G01C21/165 ,  G01C21/28 ,  G01S19/07 ,  G01S19/41 ,  G01S19/45 ,  G01S19/49 ,  G01S19/50 ,  G01S2205/008

摘要： A real-time integrated navigation system for a vehicle includes a GPS receiver, connected to a first antenna, where the GPS receiver receives GPS data from satellites and outputs GPS position data. The system also includes a communications link, connected to a second antenna and to the GPS receiver, receiving range and carrier phase measurements from at least one base station. The system further includes navigation aids which provide relative position data of said vehicle and a Kalman filter, connected to the output of the GPS receiver and the navigation aids, that integrates the GPS position data and the relative position data and outputs smoothed position data. The smoothed position data is used in transportation applications, especially detection of lane departure. This GPS-based positioning system is suitable for highway speeds during all weather conditions.

摘要翻译： 用于车辆的实时组合导航系统包括连接到第一天线的GPS接收器，其中GPS接收器从卫星接收GPS数据并输出GPS位置数据。 该系统还包括连接到第二天线和GPS接收机的通信链路，用于接收来自至少一个基站的测距和载波相位测量。 该系统进一步包括提供所述车辆的相对位置数据的导航辅助设备以及连接到GPS接收机的输出端和导航辅助设备的卡尔曼滤波器，所述卡尔曼滤波器将GPS位置数据和相对位置数据整合并输出平滑的位置数据。 平滑的位置数据用于运输应用，特别是检测车道偏离。 这种基于GPS的定位系统适用于所有天气条件下的公路速度。