A novel scaling method for sinusoidal quadrature encoder
A novel scaling method for sinusoidal quadrature encoder
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一种新颖的正弦正交编码器缩放方法
DOI：
10.1109/ipemc.2009.5157498
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Zheng
中科院分区：
文献类型：
--
作者：
Xiaoyuan Hong;Zheng
提出了一种新的正弦正交编码器无查找表标度方法。在DSP中产生一个高阶正弦载波和一个锯齿作为LUT来检测正弦编码器信号的相位。详细描述了缩放过程。并阐述了离散正弦载波的产生原理。在此基础上，分析了决定缩放分辨率的因素，推导了高速抗锯齿的要求。最后，在采用HEIDENHAIN公司的增量式编码器ERN487的DSP控制永磁同步电机上实现并验证了该方法的有效性。
This paper presents a novel scaling method for sinusoidal quadrature encoder without look-up Table(LUT). A high-order sinusoidal carrier and a sawtooth serving as the LUT are generated in the DSP to detect the phase of the sinusoidal encoder signal. The scaling process is described in detail. And the principle to generate the discrete sinusoidal carrier is also illustrated. After that, the factors that decide the scaling resolution are analysed and the requirement to antialiase at high speed is deduced. Finally, the proposed method is implemented and verified by the results on a DSP controlled permanent magnet synchronous motor with an incremental encoder ERN487 from HEIDENHAIN.