Robinette GM1 video
The following video shows the algorithms on the Robinette GM1:
The combination of low-cost MEMS inertial sensors (mainly accelerometer and gyroscope) with a low-cost single frequency GPS receiver (u-blox 6T) is shown in this video. The sensors are all in a single box with a GPS antenna. The Kalman filter runs on an ARM microcontroller, the calculated position and orientation of the box is visualized on a laptop in a OpenGL application as a cube.
Sensor box: teXXmo GmbH (Robinette GM1 - www.robinette.de)