Based on one fiber optic gyro SINS, three initial alignment methods including classical gyrocompass, two-position Kalman filter and continuous-rotation Kalman filter are experimentally studied.

基于某型低精度光纤陀螺捷联系统，分别采用经典罗经对准、两位置卡尔曼滤波及连续旋转卡尔曼滤波三种方法进行了初始对准实验研究。

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The result shows that the alignment accuracy of classical gyrocompass method is low due to the non-compensated bias of IMU.

结果表明，经典罗经对准方法由于未对零偏进行处理，导致其精度不高。

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The result shows that the alignment accuracy of classical gyrocompass method is low due to the non-compensated bias of IMU.

结果表明，经典罗经对准方法由于未对零偏进行处理，导致其精度不高。

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