Lattice FIR digital filter architectures using stochastic computing

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

22 Scopus citations

Abstract

This paper presents novel architectures for linear-phase FIR digital filters using stochastic computing. Stochastic computing systems require fewer logic gates and are inherently fault-tolerant. Thus, these structures are well suited for nanoscale CMOS technologies. Compared to direct-form linear-phase FIR filters, linear-phase lattice filters require twice the number of multipliers but the same number of adders. The hardware complexities of stochastic implementations of linear-phase FIR filters for direct-form and lattice structures are comparable. Using speech signals from ICA ′99 Synthetic Benchmarks, it is shown that, for linear-phase FIR filters, the error-to-signal power ratios of stochastic direct-form and stochastic lattice filters are about the same. However, the error-to-signal power of stochastic direct-form or lattice filter is an order of magnitude higher at very low fault rates but is more than two orders of magnitude less when the fault rate is about one percent than the direct-form, where the faults represent random bit-flips at outputs of all logic gates.

Original languageEnglish (US)
Title of host publication2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1027-1031
Number of pages5
ISBN (Electronic)9781467369978
DOIs
StatePublished - Aug 4 2015
Event40th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Brisbane, Australia
Duration: Apr 19 2014Apr 24 2014

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2015-August
ISSN (Print)1520-6149

Other

Other40th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015
CountryAustralia
CityBrisbane
Period4/19/144/24/14

Keywords

  • FIR digital filter
  • Stochastic computing
  • fault-tolerance
  • hardware complexity
  • lattice structure
  • linear-phase FIR filters
  • stochastic logic

Fingerprint Dive into the research topics of 'Lattice FIR digital filter architectures using stochastic computing'. Together they form a unique fingerprint.

Cite this