车载动基座FOAM对准算法

Vehicular moving-base FOAM alignment algorithm

目前对动基座对准问题的解决方案大都基于惯性系,但这些方案需要存储导航期间惯性系矢量信息,且对准结束时定位精度不高。提出一种新的车载动基座快速最优姿态矩阵(fast optimal attitude matrix,FOAM)对准算法,有效提高了车辆动基座定向精度,并能够保证在对准结束时有一定的定位精度以保证后续直接进入组合导航。最后,车载试验验证了车载FOAM对准算法的有效性。

At present,the schemes of moving-base alignment are mostly based on inertial coordinate,but these schemes need to store inertial vectors information in the whole navigation process,and the position accuracy is not enough at the end of the alignment process.A new vehicular moving-base fast optimal attitude matrix（FOAM） attitude and position determination algorithm is proposed,which can improve the attitude directional accuracy and reach a higher position accuracy to enter the process of integrated navigation.Finally,vehicular tests prove the effectiveness of the proposed vehicular FOAM alignment algorithm.