This paper presents a new method of measuring the graduation angle of the equally divided circle by using 4 high precision inductive gauge heads to form a single constant angle.
本文提出一种用4个高精度电感测头构成单常角，实现对等分圆周分度角度测量的新方法。
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。
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