Efficient implementation of the normalized recursive least-square lattice filter

Sau-Gee Chen*, Jih Feng Lin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

An efficient hardware implementation is proposed for the optimal, computationally intensive, normalized recursive least-squares lattice (NLSL) filter. NLSL operation steps are optimized for better hardware utilization. To best match the execution steps, a combined processing unit for radix-2 division and square-root operations, and a radix-4 MSB-first multiplication unit based the signed digit (SD) arithmetic are proposed. The proposed NLSL implementation achieves both good area and time performance. The approach is shown to be better than the CORDIC approach, and SD arithmetic is a good choice for implementing the complicated signal processing algorithms.

Original languageEnglish
Title of host publicationProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
PublisherPubl by IEEE
Pages1565-1568
Number of pages4
ISBN (Print)078030033
DOIs
StatePublished - 14 Apr 1991
EventProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91 - Toronto, Ont, Can
Duration: 14 May 199117 May 1991

Publication series

NameProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Volume3
ISSN (Print)0736-7791

Conference

ConferenceProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91
CityToronto, Ont, Can
Period14/05/9117/05/91

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