Switched Nonuniform and Piecewise Uniform Scalar Quantization of Laplacian Source

Encoder Design for Switched Piecewise Uniform Vector Quantization of the Memoryless Two-dimensional Laplacian Source

Abstract. In this paper switched piecewise uniform vector quantization of two-dimensional memoryless Laplacian source is asymptotically analyzed for the case where the power of input signal varies in a wide range. One possible solution for encoder design is given for the same quantizer. The presented encoder is a compromise between memory space and number of logical circuits. Uniform quantizer ...

Switched Piecewise Uniform Vector Quantization of the Memoryless Two-dimensional Laplacian Source in a Wide Dynamic Range of Power

In this paper a simple and complete asymptotical analysis is given for a switched piecewise uniform quantization of twodimensional memoryless Laplacian source with the respect to distortion (D) i.e. the mean-square error (MSE). Piecewise uniform quantization consists of L different uniform vector quantizers. Uniform quantizer optimality conditions and all main equations for optimal number of le...

Optimal entropy-constrained scalar quantization of a uniform source

Let a ! 0 and T ! 0 first, and then let k ! 1 to obtain lim sup a!0 lim sup

Optimal Entropy-Constrained Scalar Quantization of a Uniform Source

Design of Nonuniform Dead-zone Quantizer with Low Number of Quantization Levels for the Laplacian Source

This paper proposes a nonuniform dead-zone quantizer for quantization of the speech signal, modeled with the Laplacian probability density function. It is consisted of the inner dead-zone part and the outer nonuniform Lloyd-Max’s part. The numerical results provided in the paper show that, for the fixed value of source entropy, the proposed quantizer provides the gain in the quality of the quan...