An iterative method for the design of variable fractional-order FIR differintegrators

  • Authors:
  • Jong-Jy Shyu;Soo-Chang Pei;Cheng-Han Chan

  • Affiliations:
  • Department of Electrical Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Rd., Nan-Tzu District, Kaohsiung 811, Taiwan, ROC;Department of Electrical Engineering, National Taiwan University, Taiwan, ROC;Department of Computer and Communication Engineering, National Kaohsiung First University of Science and Technology, Taiwan, ROC

  • Venue:
  • Signal Processing
  • Year:
  • 2009

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Abstract

In the paper, a new method is proposed for the design of variable fractional-order (VFO) FIR differintegrators. Comparing with the existing methods, the elements of relevant matrices can be determined just by the given specification, which makes the method easier. An iterative technique is also incorporated to adjust the weighting function, such that the peak absolute error of variable frequency response can be reduced drastically. Several design examples, including a VFO differintegrator, two VFO differentiators and a VFO integrator, are presented to demonstrate the effectiveness and flexibility of the proposed method.