There exists a slope drift in an integral gyro when it is used as an azimuth gyro, which may cause serious heading and position errors in the Inertial Navigation System (INS).
当惯性陀螺工作在方位姿态时，有一定的斜坡漂移，它将引起惯性导航系统中的严重的航向和位置误差，所以有必要估计和补偿它。
Azimuth Angle is calculated exactly through two-position method and constant drift of gyroscope is cancelled.
通过双位置方法准确计算出载体的方位角，并且抵消了陀螺的常值漂移对寻北精度的影响。
This method solves the problem of rapid azimuth alignment on the moving base, dramatically reduces the requirement of carrier's movement and gives a means of measure gyroscope drift.
该对准方法解决了动基座上方位快速对准的难题，大大降低了对载体的机动要求，同时为陀螺测漂提供了手段。
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