Results 21 to 30 of about 50,918 (285)

Vowel Phoneme Segmentation for Speaker Identification Using an ANN-Based Framework

open access: yesJournal of Intelligent Systems, 2013
Vowel phonemes are a part of any acoustic speech signal. Vowel sounds occur in speech more frequently and with higher energy. Therefore, vowel phoneme can be used to extract different amounts of speaker discriminative information in situations where ...
Sarma Mousmita, Sarma Kandarpa Kumar
doaj   +1 more source

Fast Codebook Generation Using Pattern Based Masking Algorithm for Image Compression

open access: yesIEEE Access, 2021
Vector Quantization (VQ) is a classical block coding technique used for image compression which achieves high compression using simple encoding and decoding process.
Muhammad Bilal   +2 more
doaj   +1 more source

Positioning Information-Based Codebook for Reconfigurable Intelligent Surface Passive Beamforming

open access: yesIEEE Open Journal of the Communications Society, 2023
In this paper, we design a positioning information (PI) based codebook (PI-CB) for reconfigurable intelligent surface (RIS) passive beamforming (PBF), in online stage.
Ahmed M. Nor   +2 more
doaj   +1 more source

DFT-based Beamforming Weight-Vector Codebook Design for Spatially Correlated Channels in the Unitary Precoding Aided Multiuser Downlink [PDF]

open access: yes, 2010
—The DFT-based beamforming weight-vector code-book is considered as an effective design for spatially correlated channels. In this paper, we demonstrate that when the antenna elements are uniformly spaced as well as linearly arranged, and the channels ...
Yang, Lie-Liang   +5 more
core   +1 more source

Federal Campaign Expenditure Codebook

open access: yes, 2020
This codebook includes definitions for purpose codes, a brief description of the coding method, and a table listing the top ten expenditures by category,Suggested Citation: Adam Sheingate, Federal Campaign Expenditure Dataset: Codebook, https://doi.org ...
Adam Sheingate (1374300)
core   +1 more source

Extended Codebook with Multispectral Sequences for Background Subtraction

open access: yesSensors, 2019
The Codebook model is one of the popular real-time models for background subtraction. In this paper, we first extend it from traditional Red-Green-Blue (RGB) color model to multispectral sequences.
Rongrong Liu   +2 more
doaj   +1 more source

Fast Linde–Buzo–Gray (FLBG) Algorithm for Image Compression through Rescaling Using Bilinear Interpolation

open access: yesJournal of Imaging
Vector quantization (VQ) is a block coding method that is famous for its high compression ratio and simple encoder and decoder implementation. Linde–Buzo–Gray (LBG) is a renowned technique for VQ that uses a clustering-based approach for finding the ...
Muhammmad Bilal   +3 more
doaj   +1 more source

PCA-Based Fast Search Method Using PCA-LBG-Based VQ Codebook for Codebook Search

open access: yesIEEE Access, 2016
A fast search method based on principle component analysis (PCA) is proposed to search codewords using vector quantization (VQ) codebooks obtained by PCA with Linde-Buzo-Gray (LBG) algorithms.
Po-Yuan Yang   +2 more
doaj   +1 more source

Codebook metrics evaluation for millimeter wave communications by antenna array response and signal to noise ratio

open access: yesITM Web of Conferences, 2018
Codebook design is a key point in beam-forming which is necessary for millimeter Wave (mmWave) communications to compensate its huge path loss. In our study, we demonstrate the benefits of the number of antenna elements for beamforming; we focus on the ...
Abdo Adam Mohamed Ahmed   +3 more
doaj   +1 more source

An Uplink SCMA Codebook Design Combining Probabilistic Shaping and Geometric Shaping

open access: yesIEEE Access, 2020
Sparse Code Multiple Access (SCMA) is a promising non-orthogonal multiple access scheme owning to the shaping gain of its multi-dimensional codebook. Most of the existing designs of the codebook are based on geometric shaping (GS), while probabilistic ...
Chengxin Jiang, Yafeng Wang
doaj   +1 more source

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