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Constant factor incremental delta modulator

Mytri, VD and Shivaprasad, AP (1986) Constant factor incremental delta modulator. In: International Journal of Electronics, 61 (1). pp. 129-135.

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Abstract

This paper presents a new algorithm for the step-size change of instantaneous adaptive delta modulator. The present strategy is such that the step-size at any sampling instant can increase or decrease by either of the two constant factors or can remain the same, depending upon the combination of three or four most recent output bits. The quantizer has been simulated on a digital computer, and its performance compared with other quantizers. The figure of merit used is the SNR with gaussian signals as the input. The results indicate that the new design can give an improved SNR over a wider dynamic range and fast response to step inputs, as compared to the earlier systems.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 29 Jul 2009 03:30
Last Modified: 29 Jul 2009 03:30
URI: http://eprints.iisc.ernet.in/id/eprint/21829

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