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对单轴旋转式捷联惯导系统进行研究,针对系统不隔离载体运动会使常值漂移不能被完全平均而产生较大误差的问题,提出一种新的转位方案.基于旋转式惯导系统的基本原理,对传统的四位置转停方案进行了改进.在不隔离载体运动的情况下,周期性地对载体运动给系统带来的误差进行补偿,从而使系统的精度大大提高,并且降低了系统的复杂程度.对陆用车辆和水上舰艇进行了计算机仿真,结果表明,该方案能够在不隔离载体运动的条件下,抑制因载体运动所产生的常值漂移误差,并对其进行实时补偿.
Aiming at the problem that the system can not make the average value drifting can not be completely averaged and the error will be generated when the system is not isolated from the carrier, a new indexing scheme is proposed based on the rotary inertial navigation system , The traditional four-position transfer scheme is improved.With the isolation of carrier motion, the error caused by carrier motion to the system is periodically compensated, so that the accuracy of the system is greatly improved and reduced The complexity of the system.Computer simulation of the land vehicle and the watercraft has been carried out.The results show that this scheme can restrain the constant value drift error caused by the carrier motion without isolating the carrier motion, make up.