Efficient Design of Halfband Low/High Pass FIR Filters Using Explicit Formulas for Tap-Coefficients

Ishtiaq Rasool KHAN  Ryoji OHBA  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E83-A   No.11   pp.2370-2373
Publication Date: 2000/11/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
Keyword: 
digital filters,  maximally flat digital filters,  lowpass filters,  highpass filters,  

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Summary: 
New explicit formulas for tap-coefficients of halfband low/high pass MAXFLAT non-recursive filters are presented by using their relationship with already presented maximally linear type IV differentiators. These formulas are modified to give a new class of narrow transition band filters, with a performance comparable to that of optimal filters.