A DFE structure using quadrature components of 8-VSB signals

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3 Citations (Scopus)


In this paper, we present a decision feedback equalizer (DFE) that uses the quadrature components of 8-VSB signals in ATSC systems to mitigate multipath distortion efficiently. Unlike the conventional DFE structure for 8-VSB signals in which a real-valued feedback filter is used with real-valued decisions, the proposed DFE uses a complex-valued feedback filter with a complex-valued feedback sample generator. Due to the difficulty in analyzing a recursive system, we present a limited performance analysis on the proposed algorithm that a well-modeled feedback filter successfully cancels multipath channels with quadrature leakages in the absence of noise. For the performance comparison with conventional DFEs in realistic environments, we uses simulation methods.

Original languageEnglish
Article number4586429
Pages (from-to)394-400
Number of pages7
JournalIEEE Transactions on Broadcasting
Issue number3
Publication statusPublished - 2008 Sep


  • 8-VSB
  • Decision feedback equalizer
  • Feedback sample generator
  • Hubert transformation filter
  • Vestigial sideband

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


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