A new structure for the design of wideband variable fractional-order FIR differentiators

作者：Chan Cheng Han; Shyu Jong Jy^*; Yang Richard Hsin Hsyong

来源：Signal Processing, 2010, 90(8): 2594-2604.

DOI：10.1016/j.sigpro.2010.03.005

• Variable digital filter
• Variable fractional-order differentiator
• FIR filter
• Least-squares method
• Wideband filter
• Farrow structure

In this paper, a new structure is proposed for the design of wideband variable fractional-order (VFO) FIR differentiators. Part of subfilters in the conventional structure are replaced by the cascade of a prefilter and the modified subfilters, such that the performance of the designed system can be improved as well as the computational cost can be reduced. Several examples will be presented to demonstrate the effectiveness of the proposed method.

• 出版日期2010-8