基于LEA-6R的惯性导航系统设计与实现

摘要

为了在隧道，城市高楼间能快速获得理想的GPS定位数据，设计并实现了基于u—Blox公司LEA-6R芯片的高灵敏度传感器组合惯性导航系统，文中介绍了外围电路，天线监管电路和在WinCE6系统下的程序设计。实践证明，在卫星不可见的情况下，该系统仍能在隧道和城市高楼中不间断地计算出准确的定位数据。其定位精度满足正常的需求。%In order to quickly obtain the desired GPS location dat~/in the tunnel and inter-city high-rise, we have designed and implemented a combination of high sensitivity sensor inertial navigation system based on the LEA-6R chip by U-Blox Company. The details of the peripheral circuits, antenna monitoring circuit, and progTamming in WinCE6 systems are introduced. Practice has shown that when the satellite is not visible, the system can still calculate the accurate posi- tioning data uninterrupted in the tunnel and inter-city high-rise. The positioning accuracy can meet normal demand.