姿态航向参考系统中磁罗盘安装误差补偿研究

Research on Alignment Error Compensation for the Magnetic Compass in the Attitude and Heading Reference System

在飞行状态下,姿态航向参考系统的航向由磁航姿计算机的姿态和磁罗盘的磁通量算得,由于磁罗盘和航姿计算机在机上有安装误差,使得算出的航向有一定偏差,针对这一问题,文章提出了一种补偿机上磁罗盘安装误差的方法。机上试验表明：该方法补偿了磁罗盘在机上的安装误差,可有效提高磁航向的精度。

The heading of the Attitude and heading reference system is calculated from the attitude of navigation computer and magnetic flux of the magnetic compass in flight state.There is definitive deviation to the magnetic heading for the alignment error between the magnetic compass and the heading and attitude reference system.A method was put forward to compensate the alignment error of the magnetic compass in the plane.The experimental result showed the method had compensated the alignment error and could improves the magnetic heading effectively.