In this article, a magnetic encoder consisting of single-pole magnetic steel and multi-pole magnetic steel has been proposed. In order to solve the problem of multi-pole angle jump point caused by signal noise, a dynamic multi-window angle pole number prediction algorithms has been put forward, which eliminates the error of angle pole number judgment and improves the resolution effectively. In order to improve the precision of angle value after subdivision, over-sampling linear interpolation tabulation method has been proposed. The method which is put forward in this article is able to enhance the precision of multi-pole angle value and eliminate the jump points in subdivision process. The resolution of the magnetic encoder obtained by this method could be improved, and it is well applied in motor control. At last, the accuracy of the magnetic encoder is ±40 LSB (0.014°) and the resolution increased from 2 ¹⁶ to 2 ²⁰ .

中文翻译：

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多极磁编码器双动态多窗口区间预测角度分割方法

本文提出了一种由单极磁钢和多极磁钢组成的磁编码器。针对信号噪声引起的多极角跳点问题，提出了一种动态多窗口角极数预测算法，消除了角极数判断的误差，有效提高了分辨率。为了提高细分后角度值的精度，提出了过采样线性插值制表方法。本文提出的方法能够提高多极角值的精度，消除细分过程中的跳跃点。这种方法得到的磁编码器的分辨率可以得到提高，在电机控制中得到很好的应用。最后， ¹⁶到 2 ²⁰ 。