Results 91 to 100 of about 1,240,549 (346)

Optimal Code book Generating LBG Algorithm [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
In this research, have been applied(LBG) algorithm to create optimal code book tat used in vector quantization, which use in widely for image and signal processing .It use in image compressing, voice compression and data encryption when it sent them, In ...
Ibrahim Ahmed saleh, Khalil Ibrahim Al
doaj   +1 more source

Detection of coherent light in an incoherent background [PDF]

open access: yes, 1999
The change in position of the self-coherence function minimum is used to detect the presence of a coherent source, rather than the change in strength of the self-coherence function at the reference path difference.
Coutinho, RC   +4 more
core  

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

Voice Identification Using MFCC and Vector Quantization

open access: yesمجلة بغداد للعلوم, 2020
The speaker identification is one of the fundamental problems in speech processing and voice modeling. The speaker identification applications include authentication in critical security systems and the accuracy of the selection.
Bassel Alkhatib   +1 more
doaj   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

open access: yesAdvanced Functional Materials, EarlyView.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima   +2 more
wiley   +1 more source

Modified BTC Algorithm for Audio Signal Coding

open access: yesAdvances in Electrical and Computer Engineering, 2016
This paper describes modification of a well-known image coding algorithm, named Block Truncation Coding (BTC) and its application in audio signal coding. BTC algorithm was originally designed for black and white image coding.
TOMIC, S., PERIC, Z., NIKOLIC, J.
doaj   +1 more source

Random Access in C-RAN for User Activity Detection with Limited-Capacity Fronthaul

open access: yes, 2016
Cloud-Radio Access Network (C-RAN) is characterized by a hierarchical structure in which the baseband processing functionalities of remote radio heads (RRHs) are implemented by means of cloud computing at a Central Unit (CU).
Dimitrova, Tamara   +3 more
core   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy   +6 more
wiley   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

mmWave Massive MIMO with Simple RF and Appropriate DSP

open access: yes, 2017
There is considerable interest in the combined use of millimeter-wave (mmwave) frequencies and arrays of massive numbers of antennas (massive MIMO) for next-generation wireless communications systems.
Mezghani, Amine, Swindlehurst, A. Lee
core   +1 more source

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