Results 41 to 50 of about 1,240,549 (346)

Learning of robust spectral graph dictionaries for distributed processing

EURASIP Journal on Advances in Signal Processing, 2018
We consider the problem of distributed representation of signals in sensor networks, where sensors exchange quantized information with their neighbors. The signals of interest are assumed to have a sparse representation with spectral graph dictionaries ...
Dorina Thanou, Pascal Frossard
doaj   +1 more source

Design of Piecewise Uniform Scalar Quantizer with Geometric Progression of Segment Width

Advances in Electrical and Computer Engineering, 2011
In this paper, the design procedure of the piecewise uniform scalar quantizer having segments with widths that form a geometric progression is presented.
NIKOLIC, J., PERIC, Z.
doaj   +1 more source

NDM: 1-Bit Delta-Sigma Converter with Non-Linear Loop [PDF]

MATEC Web of Conferences, 2019
In this paper we propose to introduce a new processing scheme in the basic loop of a Delta Sigma (ΔΣ) analog-to-digital converter. This processing confers extra gains of the converter over both the quantization error and the channel noise.
Lagunas Miguel A., Perez-Neira Ana, Rubio José   +2 more
doaj   +1 more source

Design of Switched Quantizers and Speech Coding Based on Quasi-Logarithmic Compandor

Elektronika ir Elektrotechnika, 2018
This article investigates switched quantizers for speech signal depicted with Gaussian probability density function (PDF). Gaussian PDF is better for smaller frame lengths that are represented here.
Nikola J. Vucic, Zoran H. Peric, Goran M. Petkovic   +2 more
doaj   +1 more source

Algorithm based on 2‐bit adaptive delta modulation and fractional linear prediction for Gaussian source coding

IET Signal Processing, 2021
A novel 2‐bit adaptive delta modulation (ADM) algorithm is presented based on uniform scalar quantization and fractional linear prediction (FLP) for encoding the signals modelled by a Gaussian probability density function. The study focusses on two major
Zoran Peric, Bojan Denic, Vladimir Despotovic   +2 more
doaj   +1 more source

Information Bottleneck Signal Processing and Learning to Maximize Relevant Information for Communication Receivers

Entropy, 2022
Digital communication receivers extract information about the transmitted data from the received signal in subsequent processing steps, such as synchronization, demodulation and channel decoding.
Jan Lewandowsky, Gerhard Bauch, Maximilian Stark   +2 more
doaj   +1 more source

Broadband Scattering Characteristic Quantization Technique for Single Fish Based on a Split-Beam Echosounder

Fishes, 2023
The utilization of broadband quantization data increases the possibility of practical applications for fish target recognition based on the acoustic scattering theory.
Qiuming Ai, Haisen Li, Jin Yao, Chao Li, Jiangping Tao   +4 more
doaj   +1 more source

Coding overcomplete representations of audio using the MCLT [PDF]

, 2008
We propose a system for audio coding using the modulated complex lapped transform (MCLT). In general, it is difficult to encode signals using overcomplete representations without avoiding a penalty in rate-distortion performance.
Malvar, Henrique S., Yoon, Byung‐Jun
core   +2 more sources

Demodulating BOC signals using compressive signal processing

Dianzi Jishu Yingyong, 2019
In order to lower the sampling frequency of binary offset carrier(BOC) signal, a BOC signal demodulation scheme based on compressive signal processing is proposed.
Song Peng, He Guodong
doaj   +1 more source

Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video

, 2016
Digitally acquired high dynamic range (HDR) video baseband signal can take 10 to 12 bits per color channel. It is economically important to be able to reuse the legacy 8 or 10-bit video codecs to efficiently compress the HDR video.
Su, Guan-Ming, Wong, Chau-Wai, Wu, Min
core   +1 more source