Authors: Velimirović, Lazar 
Perić, Zoran
Stanković, Miomir 
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Approximation of the optimal compressor function combining different spline functions in segments
Journal: 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, TELSIKS 2013
Volume: 2
First page: 541
Last page: 544
Conference: 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, TELSIKS 2013; Nis; Serbia; 16-19 October 2013
Issue Date: 1-Dec-2013
Rank: M33
ISBN: 978-1-479-90902-5
DOI: 10.1109/TELSKS.2013.6704436
Abstract: 
In this paper the companding quantizer design using the approximative spline functions of the first and the second degree is done. The spline function of the first degree and the second degree is used for the approximation of the optimal compressor function. In order to reduce realization complexity of the designed model, in this paper it is proposed that the optimal compressor function in different segments is approximated by different spline functions, which means that the approximation of the optimal compressor function is done by combining the spline function of the first degree and the second degree. Comprehensive analysis of the results obtained for the proposed companding quantizer for the number of segments 2L = 4 i 2L = 8 is done.
Keywords: Companding quantizer | Optimal compressor function | Spline functions
Publisher: IEEE
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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