Our team is designing a lightweight speed and distance sensor for skis and snowboards. We have decided to pursue a solution using both Global Position System (GPS) and Inertial Navigation System (INS). This method will allow us to reap the independent benefits of each system. These two technologies are complimentary to eachother because GPS has long-term reliability and INS has short-term accuracy.

We believe this method will give us the most accurate data, over GPS or INS individually. The two systems will then be integrated using a Kalman filter. This will allow us to get the most accurate position and speed estimate and get the most benefit from the two systems.