Das könnte eine Möglichkeit für eine GPS Navigation sein.
https://en.wikipedia.org/wiki/Real_Time_Kinematic http://gizmodo.com/5405804/make-your-own-real-time-kinematic-gps-receiver-thats-accurate-to-one-centimeter http://gpspp.sakura.ne.jp/rtklib/rtklib_beagleboard.htm http://makezine.com/2009/11/12/diy-real-time-kinematic-gps/
https://en.wikipedia.org/wiki/Real_Time_Kinematic http://gizmodo.com/5405804/make-your-own-real-time-kinematic-gps-receiver-thats-accurate-to-one-centimeter http://gpspp.sakura.ne.jp/rtklib/rtklib_beagleboard.htm http://makezine.com/2009/11/12/diy-real-time-kinematic-gps/