捷联航姿系统中陀螺随机常值漂移的校正

本文提出了一种对系泊晃动基座上捷联式航向姿态基准压系统中陀螺随机常值漂移误差进行校正的位置校正法。通过数字滤波器将捷联系统姿态误差角的纵横摇误差角的舒拉周期量滤除,利用系泊时地理位置不变,将它作为观察量,对陀螺随机常值漂移误差进行辨识、校正。仿真结果表明,此方法的校正精度较为满意。

Correction of Gyro Random Constant Drift Errors in Strapdown Inertial Navigation System

This paper gives a method for correcting the gyro random constant drift errors of strapdown attitude and heading reference system on waving base while mooring. That is, two digital filters are used for minimizing the pitch and roll errors, unchangeable positions are used as observors. Therefore the gyro random constant drift errors are identified and corrected. Finally, judging from computer simulation result, the method is efficient and significant for calibration of gyro random constant drift errors.