Design of a SINS/GPS-integrated navigation system

Strap-down Inertial Navigation System(SINS) is a kind of navigation way with high degree of autonomy, which is superior to other ways in short-term precision performances, but high in long-term position errors because of accumulative effects. On the other hand, Global Position System(GPS) is good in long-term accuracy, but poor in short-term accuracy. The motivation for GPS/SINS integration is to develop a navigation system which overcomes the shortcomings of each system. This system adopts inertial measurement units(IMUs) to provide linear acceleration and angular velocity, combining with GPS-OEM board to provide GPS information, and high performance DSP to calculate the navigation information. At last, the experiments verify that the system can be applied to practical application