Open AccessDesign of Piecewise Uniform Scalar Quantizer with Geometric Progression of Segment Width
Author(s) -
Zoran Perić,
Jeleikolić
Publication year - 2011
Publication title -
advances in electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 23
eISSN - 1844-7600
pISSN - 1582-7445
DOI - 10.4316/aece.2011.04006
Subject(s) - piecewise , scalar (mathematics) , mathematics , mathematical analysis , control theory (sociology) , computer science , algorithm , topology (electrical circuits) , geometry , combinatorics , artificial intelligence , control (management)
In this paper, the design procedure of the piecewise uniform scalar quantizer having segments with widths that form a geometric progression is presented. The proposed quantizer design optimization for the Laplacian source of the unit variance is performed by optimizing the distortion in respect to the support region threshold and the scaling factor which defines the geometric progression of the consecutive segment widths. For the proposed quantizer model and its forward adaptive version, the signal to quantization noise ratio robustness analysis in a wide variance range is also presented in the paper. Regarding the performance comparision of the proposed quantizer, the uniform quantizer and the G.711 quantizer, the conclusion of the proposed quantizer significance is distinctly shown in the paper