Hierarchical pipelining and folding of QRD-RLS adaptive filters

Lijun Gao, Keshab K. Parhi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

A novel approach for hierarchically pipelining and folding the CORDIC-based systolic triangular array of a QRD-RLS filter to a small fixed size array is presented. With the annihilation-reordering look-ahead transformation, the iteration bound of a QRD-RLS filter can be reduced proportional to the look-ahead level. This paper presents, for the first time, how to pipeline and fold such a look-ahead transformed QRD-RLS array in a hierarchical way. Compared to the previously published mapping algorithms, this approach has low complexity and can result in a physical array of any size. Therefore, it is of great significance for ASIC chip designs and high-level synthesis. Besides, it is shown how a combination of look-ahead, pipelining and folding transformations can lead to an increase in throughput, a large reduction in area or a great saving in power consumption.

Original languageEnglish (US)
Title of host publicationDesign and Implementation of Signal Processing SystemNeural Networks for Signal Processing Signal Processing EducationOther Emerging Applications of Signal ProcessingSpecial Sessions
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3283-3286
Number of pages4
ISBN (Electronic)0780362934
DOIs
StatePublished - Jan 1 2000
Event25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000 - Istanbul, Turkey
Duration: Jun 5 2000Jun 9 2000

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume6
ISSN (Print)1520-6149

Other

Other25th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2000
CountryTurkey
CityIstanbul
Period6/5/006/9/00

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