Study of single-antenna GPS/accelerometer integrated attitude determination method

In order to improve the attitude determination accuracy of the micro aerial vehicles and the missiles,in which transverse size is not enough for fixing multiple antennae,a single-antenna GPS aiding attitude determination method was proposed.The pseudo attitude concept was introduced,and the attitude determination method aided by the pseudo attitude was presented.The principle of attitude determination with single-antenna GPS and accelerometers was introduced.The mathematic model for the system that defined the attitude of body was established.The solution procedure of attitude determination was presented and the physical meanings were introduced.Then the semi-physical simulation of single-antenna GPS attitude determination system was carried out.The simulation results based on measured data show that the attitude determination system can provide real-time and accurate attitude information.It provids the basis for the application of single-antenna GPS/SINS navigation system in micro aerial vehicle.