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Convention Paper

State-Space Biquad Filters with Low Noise and Improved Efficiency for Pipelined DSPs

Authors: McGrath, David

AES Convention 127 · Paper 7922 · October 2009

Abstract

A State-Space filter structure is presented, along with simplified equations for mapping the coefficients of arbitrary biquad filter coefficients to the State-Space structure. This procedure allows low noise implementation of an arbitrary second-order filter transfer function. A block-processing variant of the State-Space structure is described, with the added benefit that greater efficiency can be achieved on some classes of modern pipelined DSP processors.

Details

Published in
AES Convention 127
AES Convention
127
Paper number
7922
Publication date
October 6, 2009
Session subject
Signal Processing
Affiliation
Dolby Laboratories, Sydney, NSW, Australia (See document for exact affiliation information.)
Type
Convention Paper