Switched Nonuniform and Piecewise Uniform Scalar Quantization of Laplacian Source

Aleksandar V. Mosić, Zoran H. Perić, Stefan R. Panić

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.


Keywords


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

Full Text:

PDF

References


R. Gray, Quantization and Data Compression, Lecture Notes, Stanford University, 2004.

D. Hankerson, G. A. Harris, P. D. Jr. Johnson, Introduction information theory and data ompression, 2nd Ed., CHAPMAN & HALL/CRC, 2004.

ITU-T, Recommendation G.711, Pulse Code Modulation (PCM) of Voice Frequencies, nternational Telecommunication Union, 1972.

N. S.Jayant, P. Noll, Digital Coding of Waveforms, Prentice-Hall, New Jersey, 1984.

Z. H. Perić, I. Djordjević, M. Stefanović, S. Bogosavljević, Combined Source and Channel oding of Speech Signal in Wide Volume Range, Proceedings of the IASTED, Las Vegas, evada, USA, 1998.

Z. H. Perić, Quantization Optimizations of Speech Signal in Wide Volume Range, Electroniccs nd Electrical Engineering, Vol.45, pp.41-48, 2003.

Z. H. Perić, J. Nikolić, An effective method for initialization of Lloyd-Max's algorithm f optimal scalar quantization for Laplacian source, Informatica, Vol.18, pp.1-10, 2007.

Z. H. Perić, A. V. Mosić, S. R. Panić, Robust and switched nonuniform scalar quantization f Gaussian source in a wide dynamic range of power, Journal of Communications echnology and Electronics, AVT Journal, Vol.6, pp.74-84, 2008.

Z. H. Perić, A. V. Mosić, S. R. Panić, Coding Algorithm Based on Loss Compression sing Scalar Quantization Switching Technique and Logarithmic Companding, Journal f Information Science and Engineering, Vol.26, pp.967-976, 2010.

K. Sayood, Introduction to data Compression, 3rd Ed., Elsevier Inc, 2006.




DOI: https://doi.org/10.15837/ijccc.2012.1.1427



Copyright (c) 2017 Aleksandar V. Mosić, Zoran H. Perić, Stefan R. Panić

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

CC-BY-NC  License for Website User

Articles published in IJCCC user license are protected by copyright.

Users can access, download, copy, translate the IJCCC articles for non-commercial purposes provided that users, but cannot redistribute, display or adapt:

  • Cite the article using an appropriate bibliographic citation: author(s), article title, journal, volume, issue, page numbers, year of publication, DOI, and the link to the definitive published version on IJCCC website;
  • Maintain the integrity of the IJCCC article;
  • Retain the copyright notices and links to these terms and conditions so it is clear to other users what can and what cannot be done with the  article;
  • Ensure that, for any content in the IJCCC article that is identified as belonging to a third party, any re-use complies with the copyright policies of that third party;
  • Any translations must prominently display the statement: "This is an unofficial translation of an article that appeared in IJCCC. Agora University  has not endorsed this translation."

This is a non commercial license where the use of published articles for commercial purposes is forbiden. 

Commercial purposes include: 

  • Copying or downloading IJCCC articles, or linking to such postings, for further redistribution, sale or licensing, for a fee;
  • Copying, downloading or posting by a site or service that incorporates advertising with such content;
  • The inclusion or incorporation of article content in other works or services (other than normal quotations with an appropriate citation) that is then available for sale or licensing, for a fee;
  • Use of IJCCC articles or article content (other than normal quotations with appropriate citation) by for-profit organizations for promotional purposes, whether for a fee or otherwise;
  • Use for the purposes of monetary reward by means of sale, resale, license, loan, transfer or other form of commercial exploitation;

    The licensor cannot revoke these freedoms as long as you follow the license terms.

[End of CC-BY-NC  License for Website User]


INTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL (IJCCC), With Emphasis on the Integration of Three Technologies (C & C & C),  ISSN 1841-9836.

IJCCC was founded in 2006,  at Agora University, by  Ioan DZITAC (Editor-in-Chief),  Florin Gheorghe FILIP (Editor-in-Chief), and  Misu-Jan MANOLESCU (Managing Editor).

Ethics: This journal is a member of, and subscribes to the principles of, the Committee on Publication Ethics (COPE).

Ioan  DZITAC (Editor-in-Chief) at COPE European Seminar, Bruxelles, 2015:

IJCCC is covered/indexed/abstracted in Science Citation Index Expanded (since vol.1(S),  2006); JCR2018: IF=1.585..

IJCCC is indexed in Scopus from 2008 (CiteScore2018 = 1.56):

Nomination by Elsevier for Journal Excellence Award Romania 2015 (SNIP2014 = 1.029): Elsevier/ Scopus

IJCCC was nominated by Elsevier for Journal Excellence Award - "Scopus Awards Romania 2015" (SNIP2014 = 1.029).

IJCCC is in Top 3 of 157 Romanian journals indexed by Scopus (in all fields) and No.1 in Computer Science field by Elsevier/ Scopus.

 

 Impact Factor in JCR2018 (Clarivate Analytics/SCI Expanded/ISI Web of Science): IF=1.585 (Q3). Scopus: CiteScore2018=1.56 (Q2); Editors-in-Chief: Ioan DZITAC & Florin Gheorghe FILIP.