Independently Integrated Navigation System of SINS and Distance-Transfer-Unit for Land Vehicles

Discusses an independently integrated navigation system(SINS) using the distance-transfer-unit(DTU) to assist the strapdown inertial navigation system(SINS/DTU). The observational measures of the SINS/DTU are the velocity's differences between SINS and DTU,and the SINS/DTU also adopts a closed Kalman filter to estimate and correct the errors. The results of simulation given in this paper indicate that the SINS/DTU can effectively improve on the following navigation parameters:velocity, latitude and longitude, yawing and attitude angle, position of track-reckoning etc.