Half-band FIR fractional delay filters with closed-form coefficient formulas and modular implementation based on Lagrange interpolators

Authors:
Mohammad Mahdi Jahani Yekta
Affiliations:
Electrical Engineering Department, Sharif University of Technology, Azadi Avenue, P.O. Box 11365-9363, Tehran, Iran
Venue:
Signal Processing
Year:
2008

Citing 3
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Abstract

The Taylor series-based representation of the maximally flat (MF) FIR fractional delay (FD) filter is manipulated to obtain a FD filter with a wider band-width. The band-width of the proposed filter can approach @p/2rads/s, which is 1.5 times that of the prototype one. The design has closed-form coefficient formulas as well as a modular implementation. These two properties make it a practically favourable one.