Rapid transfer alignment of lager misalignment angle for carrier aircrafts

To solve the large azimuth misalignment angle problem between MINS and SINS, and shorten the transfer alignment time, a take-off alignment method of the carrier-based aircraft is put forward, and the linearization error model of transfer alignment is built in this paper. This method synthetically uses the velocity of MINS, the azimuth of the runway and the velocity of Doppler velocimeter to transfer the lager azimuth misalignment angle problem between MINS and SINS into small azimuth misalignment angle problem between aircraft coordinate and runway coordinate. Considering the motion models of the carrier-based aircraft and the aircraft carrier, the simulation is carried out by comparing with UKF. The results show that the transfer alignment can be implemented within 8 s, and the performance is equivalent to that of UKF, and there is no need to carry out any maneuver for aircraft carrier.