Pipelined adaptive iir filter architectures using scattered and relaxed look-ahead transformations

Naresh R. Shanbhag, Gi Hong Im

Research output: Contribution to journalArticle

Abstract

Fine-grain pipelined architectures for adaptive infinite impulse response (AIIR) filters are presented in this paper. The AIIR filters are equation error based. The proposed architectures are developed by employing a combination of scattered look-ahead and relaxed look-ahead pipelining techniques. First, a pipelined system identification scenario is developed. Then, the scattered look-ahead technique is applied to the nonadaptive (but time-varying) recursive section. Finally, a relaxed look-ahead technique is applied to the adaptive blocks. Convergence analysis of the pipelined architectures is presented and verified via simulations. H is shown that speedups of up to 8 and more can be achieved with marginal or no degradation in performance.

Original languageEnglish (US)
Pages (from-to)1841-1847
Number of pages7
JournalIEEE Transactions on Signal Processing
Volume44
Issue number7
DOIs
StatePublished - Dec 1 1996

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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