激光陀螺四位置寻北仪提高精度方法

为消除激光陀螺零偏和常值漂移的影响，采用四位置方案来实现高精度寻北。本文简述了单轴激光陀螺四位置寻北方案，给出了陀螺敏感轴与机体系前向偏差角标定方法，研究了寻北仪在倾斜基座下数据补偿算法。本文研究了由于在四个位置上电机转动不到位所引起的误差补偿算法。通过对寻北仪系统测试，采用电机转动不到位补偿后数据标准差降低了0.02º，激光陀螺寻北仪系统达到了高精度快速寻北的要求。

The Accuracy Exaltation Method Of Four-Position Laser Gyro North Seeker

In order to cancel the impact of gyro bias and gyro drift, using four-position method to achieve high north-seeking accuracy. This paper describes a single-axis laser gyro of four position north-seeking program, given the deviation angle calibration method between the gyro sensitive axis and the front of machine system. We also studied the gyro data compensation algorithm under the tilt base and the gyro data error caused by the motor in four positions. Through experimental testing, the data Sigma reduce 0.02º with the position compensate method. The north Seeker system achieved the requirements of high accuracy and fast north-seeking.