Allpass variable fractional delay filters by pole loci interpolation

作者：Hacihabiboglu H^*

来源：Electronics Letters, 2010, 46(8): 558-U28.

DOI：10.1049/el.2010.3168

A simple, accurate and efficient variable fractional delay (VFD) IIR filter is presented. The method is based on the interpolation of pole loci of maximally-flat allpass fractional-delay filters. The responses of the proposed VFD filter for different fractional delay values are simulated and the approximation errors are shown to be very small.

• 出版日期2010-4-15