Switched Nonuniform and Piecewise Uniform Scalar Quantization of Laplacian Source

  • Aleksandar V. Mosić Faculty of Electronic Engineering, University of Niš Aleksandra Medvedeva 14, 18000 Niš, Serbia
  • Zoran H. Perić Faculty of Electronic Engineering, University of Niš Aleksandra Medvedeva 14, 18000 Niš, Serbia
  • Stefan R. Panić Faculty of Natural Science and Mathematics, University of Priština Lole Ribara 29, 38200 Kosovska Mitrovica, Serbia

Abstract

In this paper switched nonuniform and piecewise uniform scalar quantization of Laplacian source are analyzed. This scalar quantization techniques are used in order to obtain higher signal quality by increasing signal-to-quantization noise ratio (SNRQ) with respect to it’s necessary robustness over a broad range of input variances in a wide range of signal volumes. We observe μ-law compandor implementation to achieve compromise between high-rate digitalization and variance adaptation. The main contribution of this model is kipping almost the same quality as the nonuniform compandor model, with simpler realization structure and the possibility of it’s applying for digitalization of wide range continuous signals.

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Published
2012-03-01
How to Cite
MOSIĆ, Aleksandar V.; PERIĆ, Zoran H.; PANIĆ, Stefan R.. Switched Nonuniform and Piecewise Uniform Scalar Quantization of Laplacian Source. INTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL, [S.l.], v. 7, n. 1, p. 115-122, mar. 2012. ISSN 1841-9844. Available at: <http://univagora.ro/jour/index.php/ijccc/article/view/1427>. Date accessed: 03 july 2020. doi: https://doi.org/10.15837/ijccc.2012.1.1427.

Keywords

switching quantization, μ-law companding, variance adaptation, Laplacian source