Authors: Velimirović, Lazar 
Perić, Zoran
Stanković, Miomir 
Nikolić, Jelena
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Design of compandor based on approximate the first-degree spline function
Journal: Elektronika ir Elektrotechnika
Volume: 19
Issue: 10
First page: 151
Last page: 154
Issue Date: 25-Dec-2013
Rank: M22
ISSN: 1392-1215
DOI: 10.5755/j01.eee.19.10.5911
In this paper, the approximation of the optimal compressor function using spline function of the first-degree is done. For the companding quantizer designed on the basis of the approximative spline function of the first-degree, the support region is numerically optimized to provide the minimum of the total distortion for the last segment. It is shown that the companding quantizer with the optimized support region threshold provides the signal to quantization noise ratio that is very close to the one of the optimal companding quantizer having an equal number of levels.
Keywords: Optimization methods | Quantization | Spline
Publisher: Kauno Technologijos Universitetas
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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