测控技术2017，Vol.36Issue(4)：36-39,4.
基于改进CORDIC算法的正余弦编码器信号细分技术
Signal Subdivision Technique of Sin/Cos-Encoder Based on Improved CORDIC Algorithm
魏冬冬 1洪占勇 1文长明 2丁建业1
作者信息
- 1. 合肥工业大学工业与装备技术研究院,安徽合肥230009
- 2. 中工科安科技有限公司,安徽合肥230031
- 折叠
摘要
Abstract
In order to obtain a more accurate real-time feedback in formation such as motor position,and improve the feedback accuracy of closed-loop control system such as numerical control systems,a high resolution signal processing method based on improved coordinate rotation digital calculation (CORDIC) algorithm is designed.Firstly,signal of encoder is processed by the signal conditioning circuit including differential amplifying,shaping,filtering and so on.Secondly,coarse code is obtained by quadruple frequency,and fine interpolation position information is obtained by electronics subdivision method based on improved CORDIC algorithm.Finally,high resolution and high precision angular position information of the motor is obtained by integrating coarse code and fine code.The results show that compared with the algorithm before optimization,the measurement error of signal is obviously reduced and the accuracy is improved.关键词
正余弦编码器/高分辨率/信号处理/CORDIC算法/电子学细分Key words
sin/cos-encoder/high resolution/signal processing/CORDIC algorithm/electronics subdivision分类
机械制造引用本文复制引用
魏冬冬,洪占勇,文长明,丁建业..基于改进CORDIC算法的正余弦编码器信号细分技术[J].测控技术,2017,36(4):36-39,4.
