Comments on “Effect of Various Dither Forms on Quantization Errors of Ideal A/D Converters”1

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Abstract

Recently a paper has been published on dithering, more precisely, on its effect on correlation (covariance) between the signal and the quantization error, further on the spectrum of quantization errors. In this correspondence it is shown that for the evaluation of the correlation (or covariance) more effective methods exist, and the covariance between the signal and the quantization error can be easily made equal to zero with appropriate dithering. It is pointed out also that the mean value of the signal has to be taken into account. Finally, some misunderstandable statements on the error spectrum are stated precisely.

Original languageEnglish
Pages (from-to)562-565
Number of pages4
JournalIEEE Transactions on Instrumentation and Measurement
Volume41
Issue number4
DOIs
Publication statusPublished - 1992

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dithers
evaluation

Keywords

  • A/D conversion
  • dither
  • quantization error spectrum
  • quantization noise
  • uniform quantization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

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title = "Comments on “Effect of Various Dither Forms on Quantization Errors of Ideal A/D Converters”1",
abstract = "Recently a paper has been published on dithering, more precisely, on its effect on correlation (covariance) between the signal and the quantization error, further on the spectrum of quantization errors. In this correspondence it is shown that for the evaluation of the correlation (or covariance) more effective methods exist, and the covariance between the signal and the quantization error can be easily made equal to zero with appropriate dithering. It is pointed out also that the mean value of the signal has to be taken into account. Finally, some misunderstandable statements on the error spectrum are stated precisely.",
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AB - Recently a paper has been published on dithering, more precisely, on its effect on correlation (covariance) between the signal and the quantization error, further on the spectrum of quantization errors. In this correspondence it is shown that for the evaluation of the correlation (or covariance) more effective methods exist, and the covariance between the signal and the quantization error can be easily made equal to zero with appropriate dithering. It is pointed out also that the mean value of the signal has to be taken into account. Finally, some misunderstandable statements on the error spectrum are stated precisely.

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KW - uniform quantization

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