电气传动2012，Vol.42Issue(5)：50-52,3.
编码器正余弦信号跟踪环路细分技术研究
Research of the Tracking-loop Subdivision for Sine-cosine Encoder Signal
摘要
Abstract
Most high performance motion control systems rely on sine-cosine encoders for position and velocity feedback. Considering the disadvantages of the traditional open-loop processing method,a novel scheme called tracking-loop was proposed. In order to extract high resolution position and speed information from the sinusoidal encoder signals, a sine and cosine generator based on the CORDIC algorithm was designed and a PI controller was also established to suppress the noise. The algorithm and the controller is implement by using ordinary analog components and FPGA. The experimental results indicate that the proposed method can meet the requirements of the high performance motion control.关键词
编码器/光栅/跟踪环路/CORDICKey words
encoder/ grating sensor/ tracking-loop / CORDIC分类
机械制造引用本文复制引用
马泽龙,唐小琦,宋宝,卢少武..编码器正余弦信号跟踪环路细分技术研究[J].电气传动,2012,42(5):50-52,3.基金项目
国家自然科学基金(50875099) （50875099）
国家自然科学基金(20100192) （20100192）
国家数控重大专项(2010ZX04017-011) （2010ZX04017-011）
