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Open Access

Description of a 2-Bit Adaptive Sigma-Delta Modulation System with Minimized Idle Tones

EURASIP Journal on Advances in Signal Processing20072008:426502

https://doi.org/10.1155/2008/426502

Received: 3 June 2007

Accepted: 28 October 2007

Published: 12 November 2007

Abstract

A 2-bit adaptive sigma delta modulation system that inherently eliminates the idle tones present in conventional and other adaptive sigma delta systems is described. The system incorporates both memory and look-ahead instantaneous step-size estimations and, as shown by computer simulation results apart from eliminating the unwanted idle tones despite dithering, it offers improved SNR performance and extended dynamic range.

Keywords

Information TechnologyComputer SimulationQuantum InformationModulation SystemFull Article

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Authors’ Affiliations

(1)
Laboratory of Electronics, Department of Physics, University of Athens, Panepistimiopolis, Greece

Copyright

© E. A. Prosalentis and G. S. Tombras. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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