Improved method for vehicular dead reckoning

According to the characteristics of vehicle navigation,the dead reckoning scheme based on single gyro and single accelerometer was given.The problem in the scheme based on differential odometer was studied,and the dead reckoning scheme based on single gyro and single odometer was proposed,which could make full use of the advantages of gyro's short-time high-precision and the odometer error's slow growth with time(especially when vehicle drove slowly).Simulation on the three dead reckoning schemes showed that the scheme based on single gyro and single odometer had better precision in both heading and position than the other two schemes.