GPS/IMU组合导航系统中杆臂效应分析

Disturbance specific force caused by the lever arm ef-fects in integration navigation system is investigated,Navigation errors eaused by the lever arm effects have been demonstrated under three flinght scenarios of the air-craft.Analytical under three flight scenarios of the ari-craft.Analytical results show that disturbance specific force resulted from lever arm effects may become one of the major error sources while an aircraft undertakes the maneuvers,and mavigation errors caused by the lever arm effects accumulate rapidly with time.Therefore,a com-pensation method must be taken into account to eliminate the disturbance specific force caused by the lever arm ef-fects in integration navigation system.

ANALYSIS OF LEVER ARM EFFECTS IN GPS/IMU INTEGRATION SYSTEM

Disturbance specific force caused by the lever arm effects in integration navigation system is investigated. Navigation errors caused by the lever arm effects have been demonstrated under three flight scenarios of the aircraft. Analytical results show that disturbance specific force resulted from lever arm effects may become one of the major error sources while an aircraft undertakes the maneuvers, and navigation errors caused by the lever arm effects accumulate rapidly with time. Therefore, a compensation method must be taken into account to eliminate the disturbance specific force caused by the lever arm effects in integration navigation system.