Wave digital filters with minimum multiplier for discrete Hilbert transformer realization

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This paper describes the design of wave digital filters for discrete Hilbert transformer realization. A method for designing real and complex half-band wave digital filters (WDFs) with a minimum number of multipliers is afforded where the multiplier coefficients for the adaptors are calculated directly from the digital domain transfer functions. This technique uses the equations derived for a class of infinite impulse response (IIR) filter and hence avoids the conventional technique of synthesizing a WDF from an analogue reference filter. The selection of the adaptor configuration is determined from the multiplier coefficient values. A minimum multiplier realization of real half-band WDFs can be obtained to meet the low-pass digital filter magnitude specifications. By applying a transformation equation, a complex half-band WDF suitable for the realization of the discrete Hilbert transformer with a minimum number of multiplier is obtained.

Original languageEnglish
Pages (from-to)3761-3768
Number of pages8
JournalSignal Processing
Volume86
Issue number12
DOIs
Publication statusPublished - Dec 2006

Fingerprint

Digital filters
Wave filters
IIR filters
Low pass filters
Transfer functions
Specifications

Keywords

  • Hilbert transformer
  • Minimum multiplier
  • Wave digital filters

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Wave digital filters with minimum multiplier for discrete Hilbert transformer realization. / Abdul Samad, Salina; Hussain, Aini; Isa, D.

In: Signal Processing, Vol. 86, No. 12, 12.2006, p. 3761-3768.

Research output: Contribution to journalArticle

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