Robust Fractional Order Differentiator

摘要：

A robust fractional order differentiator is proposed to estimate the fractional order derivative of the given contaminated signal. Least square polynomial fitting technique is used to minimize the noise and Griinwald-Letnikov definition is used to calculate the fractional order derivative. A concise method is proposed to speed up the computation time and a parameter setting strategy is present for user. The frequency domain analysis demonstrates that the proposed differentiator essentially is a fractional order low-pass filter. The accuracy and robustness are evaluated by the experiments.

关键词： Fractional Order Differentiator Robust Least Squares.

作者: Dali Chen YangQuan Chen Dingyu Xue

作者单位: College of Information Science and Engineering. Northeastern University. Shenyang. 110004. China Center for Self-Organizing and Intelligent Systems (CSOIS). Department of Electrical and Computer En

会议类型: 国际会议

会议名称: The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

会议地点: 太原

会议语种:英文

页码: 1037-1042

在线出版日期: 2012-05-23（万方平台首次上网日期，不代表论文的发表时间）