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A 2-bit Adaptive Delta Modulation System with Improved Performance


A 2-bit adaptive delta modulation system with improved performance is proposed in this paper. Its main characteristic is a new adaptation algorithm that incorporates both memory and look-ahead instantaneous step-size estimation and leads the modulator into generating a 2-bit output codeword. As shown by computer simulation results, the proposed system offers reduced overshoot and fast response to signal variations in comparison to other similar systems.


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Correspondence to E. A. Prosalentis.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Prosalentis, E.A., Tombras, G.S. A 2-bit Adaptive Delta Modulation System with Improved Performance. EURASIP J. Adv. Signal Process. 2007, 016286 (2006).

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  • Information Technology
  • Computer Simulation
  • Signal Variation
  • Improve Performance
  • Quantum Information