A novel error compensation method for an absolute optical encoder based on empirical mode decomposition

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• 作者：Nian Cai^a ; Wei Xie^a ; Hongxia Peng^a ; Han Wang^b ; Zhijing Yang^a ; Xin Chen^b ; ^{lxyxm@126.com}
• 关键词：Absolute optical encoder ; Error compensation ; Empirical mode decomposition ; Hilbert marginal spectrum
• 刊名：Mechanical Systems and Signal Processing
• 出版年：2017
• 出版时间：1 May 2017
• 年：2017
• 卷：88
• 期：Complete
• 页码：81-88
• 全文大小：654 K
• 卷排序：88

文摘

An error compensation method is proposed to improve measurement accuracy of an absolute optical encoder. The proposed method is based on empirical mode decomposition. A novel trend extracting scheme is proposed based on the Hilbert marginal spectrum. The proposed method is superior to the traditional EMD-based method.