Digital compensation scheme for coefficient errors of complex filter bank parallel A/D converter in low-IF receivers

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Abstract

In this paper, a digital compensation scheme for coefficient errors of a complex filter bank parallel A/D converter in low-lF receivers is presented. The complex filter bank is employed to suppress DC offset and image signals in the low-IF receivers and relax the requirements on the conversion rate and resolution of A/D converters. The proposed compensation scheme regenerates interference due to coefficient errors and subtracts it from the digital signal converted by an A/D converter. The proposed scheme also improves the effective resolution of A/D converters.

Original languageEnglish
Pages (from-to)2656-2662
Number of pages7
JournalIEICE Transactions on Communications
VolumeE85-B
Issue number12
Publication statusPublished - 2002 Dec

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Keywords

  • A/D converter
  • Filter bank
  • Low-IF receiver
  • Software radio

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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