Results 21 to 30 of about 155,600 (259)

Low-Complexity BFGS-Based Soft-Output MMSE Detector for Massive MIMO Uplink

open access: yesIET Signal Processing, 2023
For the massive multiple-input multiple-output (MIMO) uplink, the linear minimum mean square error (MMSE) detector is near-optimal but involves undesirable matrix inversion.
Lin Li, Jianhao Hu
doaj   +1 more source

Research on coal-rock interface distribution perception based on near-infrared spectra

open access: yesGong-kuang zidonghua, 2022
Near-infrared reflectance spectra can distinguish coal and rock based on the difference of reflectance spectra characteristics caused by different intrinsic material attributes of coal and rock.
YANG En, WANG Shibo, XUAN Tong
doaj   +1 more source

Uncertainty in the reactor neutrino spectrum and mass hierarchy determination

open access: yesJournal of High Energy Physics, 2019
One of the challenges that must be overcome in order to determine the neutrino mass hierarchy using reactor neutrinos is the theoretical uncertainty in the unoscillated reactor neutrino spectrum: this is one of the reasons why, recently, it was proposed ...
E. Ciuffoli, J. Evslin, H. Mohammed
doaj   +1 more source

Design and test of portable comprehensive quality non-destructive detector for grape bunches based on spectrum

open access: yesJournal of Future Foods, 2022
Based on the analysis technology of visible/near infrared diffuse reflectance spectroscopy a portable and nondestructive detector was designed to test comprehensive quality of red globe grape bunches in the growth period.
Sheng Gao, Jianhua Xu
doaj   +1 more source

Operation of a Modular 3D-Pixelated Liquid Argon Time-Projection Chamber in a Neutrino Beam

open access: yesInstruments
The 2x2 Demonstrator, a prototype for the Deep Underground Neutrino Experiment (DUNE) liquid argon (LAr) Near Detector, was exposed to the Neutrinos from the Main Injector (NuMI) neutrino beam at Fermi National Accelerator Laboratory (Fermilab).
S. Abbaslu   +1324 more
doaj   +1 more source

Near infrared detectors for SNAP [PDF]

open access: yesSPIE Proceedings, 2006
Large format (1k x 1k and 2k x 2k) near infrared detectors manufactured by Rockwell Scientific Center and Raytheon Vision Systems are characterized as part of the near infrared R&D effort for SNAP (the Super-Nova/Acceleration Probe). These are hybridized HgCdTe focal plane arrays with a sharp high wavelength cut-off at 1.7 um. This cut-off provides
Schubnell, M.   +12 more
openaire   +3 more sources

A Low Cost Auto-filling and Refrigeration Rate Regulated Liquid Nitrogen Controller for Near Infrared Instruments

open access: yesU.Porto Journal of Engineering, 2015
Liquid Nitrogen is one of the key refrigerating elements in cooling near infrared science instruments to reduce the dark, readout noises and thermal emissions in the near infrared originated from the instrument structure. Usually, a small liquid nitrogen
Narsireddy Anugu   +5 more
doaj   +1 more source

IR - Blind Visible Silicon Detector [PDF]

open access: yesEngineering and Technology Journal, 2005
In the present paper , silicon p - n junction detector of 600 + 25 nm peak response has been characterized . This peak was obtained by depositing high purity Au thin film onto sensitive side of the p - n junction ( donor - side ) , this film reduces the ...
Khalid Al-Ta'ai
doaj   +1 more source

Performance of a Modular Ton-Scale Pixel-Readout Liquid Argon Time Projection Chamber

open access: yesInstruments
The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout
A. Abed Abud   +1362 more
doaj   +1 more source

Pseudohexadecimal near maximum likelihood detector

open access: yesPacific Science Review A: Natural Science and Engineering, 2015
AbstractThis paper introduces two newly developed near-maximum likelihood detectors, named pseudohexadecimal and modified pseudohexadecimal near-maximum likelihood detectors. These two detectors are tested against a pseudoquaternary near-maximum likelihood detector using data transmission at 9.6 kb/s over a telephone channel.
AL-Rawi, Muhanned, AL-Rawi, Muaayed
openaire   +1 more source

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