Multiplier-free structures for IIR half-band filter by multiple use of short subfilter

This paper proposes a novel synthesis scheme for sharpening IIR half-band filters. Starting from a short IIR half-band subfilter, the scheme utilizes algebraic composition of several subfilters to construct a composite IIR half-band filter. The IIR half-band filter has a low-complexity structure wit...

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Bibliographic Details
Published in2001 IEEE International Symposium on Circuits and Systems Vol. 2; pp. 37 - 40 vol. 2
Main Author Min-Chi Kao
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Chebyshev approximation
Computational complexity
Digital arithmetic
Digital filters
Dynamic range
Finite impulse response filter
IIR filters
Modems
Polynomials
Roundoff errors
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ISBN9780780366855
0780366859
DOI10.1109/ISCAS.2001.921000

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Summary:This paper proposes a novel synthesis scheme for sharpening IIR half-band filters. Starting from a short IIR half-band subfilter, the scheme utilizes algebraic composition of several subfilters to construct a composite IIR half-band filter. The IIR half-band filter has a low-complexity structure with good numerical properties like small dynamic range and low round-off error sensitivity. When the subfilter is multiplier-free, the proposed scheme is completely multiplier-free and also not subject to wordlength.
ISBN:9780780366855
0780366859
DOI:10.1109/ISCAS.2001.921000