| Authors: | Velimirović, Lazar Perić, Zoran Nikolić, Jelena Stanković, Miomir |
Affiliations: | Mathematical Institute of the Serbian Academy of Sciences and Arts | Title: | Design of Compandor Quantizer for Laplacian Source for Medium Bit Rate Using Spline Approximations | Journal: | Facta Universitatis, Series: Electronics and Energetics | Volume: | 25 | Issue: | 1 | First page: | 81 | Last page: | 92 | Issue Date: | 1-Apr-2012 | Rank: | M24 | ISSN: | 0353-3670 | DOI: | 10.2298/FUEE1201081V | URL: | http://facta.junis.ni.ac.rs/eae/fu2k121/eae120107.pdf | Abstract: | In this paper, the approximation of the optimal compressor function using spline function of the first and second degree is done. On the basis of the obtained approximate spline functions, a quantizer designing is done. The achieved SQNR is very close to that of the model of quantizer based on the nonlinear compressor function. Also, it is shown that for the medium bit rate a higher value of SQNR is achieved by using quantizer model proposed in this paper for the spline of degree 2 than by optimal compandor. |
Keywords: | Spline approximations | Compressor functions | Scalar compandor | Publisher: | Faculty of Electronic Engineering, University of Niš | Project: | Development of new information and communication technologies, based on advanced mathematical methods, with applications in medicine, telecommunications, power systems, protection of national heritage and education |
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