Results 21 to 30 of about 88,416 (262)

A Magnetic Resonance Imaging Receiver Design Based on NI PXIe-7966R

open access: yesChinese Journal of Magnetic Resonance, 2017
A magnetic resonance imaging receiver design based on NI PXIe-7966R is proposed, with which the magnetic resonance signals are sampled directly and down-converted digitally, the raw data are uploaded and the magnetic resonance image are restored.
HU Jin-jie   +5 more
doaj   +1 more source

Digital Receiver Design for Transmitted Reference Ultra-Wideband Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
A complete detection, channel estimation, synchronization, and equalization scheme for a transmitted reference (TR) ultra-wideband (UWB) system is proposed in this paper.
Wang Yiyin   +2 more
doaj   +2 more sources

ANALOG-TO-DIGITAL INTERFACE FOR HETERODYNE RECEIVERS

open access: yesJournal of Circuits, Systems and Computers, 2002
The analysis of the Intermediate Frequency (IF) section of a heterodyne receiver employing IF sampling, based on its Carrier-to-Interference ratio (C/I), yields various options on filtering, amplification, conversion to digital and interfacing to base-band.
Aristodemos Pnevmatikakis   +2 more
openaire   +2 more sources

Low-Complexity Chromatic Dispersion Equalization FIR Digital Filter for Coherent Receiver

open access: yesPhotonics, 2022
This paper proposes a novel and efficient low-complexity chromatic dispersion equalizer (CDE) based on finite impulse response (FIR) filter architecture for polarization-multiplexed coherent optical communication systems.
Zicheng Wu   +4 more
doaj   +1 more source

WIDEBAND DIGITAL RECEIVER/PULSE ANALYZER

open access: yesRadio Physics and Radio Astronomy, 2015
The experience of development of a digital receiver/pulse analyzer is described. The measuring set has a modular structure and consists of three functionally independent systems: Radio Frequency Tuner, Digital Pulse Analyzer, and Data Record and Storage ...
V. V. Vynogradov   +8 more
doaj   +1 more source

FFT-Based Simultaneous Calculations of Very Long Signal Multi-Resolution Spectra for Ultra-Wideband Digital Radio Frequency Receiver and Other Digital Sensor Applications

open access: yesSensors
The discrete Fourier transform (DFT) is the most commonly used signal processing method in modern digital sensor design for signal study and analysis.
Chen Wu, Michael Low
doaj   +1 more source

A tri-band terrestrial beacon digital receiver system for TEC measurements

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The ionosphere is an important component of near-Earth space that has a significant impact on communication and navigation. Furthermore, the total electron content (TEC) of the ionosphere is a widely used parameter in near-Earth plasma environment ...
Chu-Yuan Zhang   +9 more
doaj   +1 more source

The filed of biography in the Ismaili Literature.

open access: yesمجلة العلوم و آفاق المعارف, 2023
Talking about digital text or digital literature is a controversial conversation because of the intellectual differences and conflicts that the topic carries, and a great controversy taking place in the critical and literary arena.
maatougui chahinez, kaddour. tifouri
doaj   +1 more source

The digital poem between the poles of creativity and reception

open access: yesمجلة العلوم و آفاق المعارف, 2023
Talking about digital text or digital literature is a controversial conversation because of the intellectual differences and conflicts that the topic carries, and a great controversy taking place in the critical and literary arena.
imane hammamdji, Kaira bendahoua
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

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