Results 81 to 90 of about 39,314,757 (302)

A Robust Nonlinear Beamforming Assisted Receiver for BPSK Signalling

open access: yes, 2005
Nonlinear beamforming designed for wireless communications is investigated. We derive the optimal nonlinear beamforming assisted receiver designed for binary phase shift keying (BPSK) signalling.
Wolfgang, A., Hanzo, L., Chen, S.
core   +1 more source

Challenges in Clock Synchronization for On-Site Coding Digital Beamformer

open access: yesInternational Journal of Reconfigurable Computing, 2017
Typical radio frequency (RF) digital beamformers can be highly complex. In addition to a suitable antenna array, they require numerous receiver chains, demodulators, data converter arrays, and digital signal processors.
Satheesh Bojja Venkatakrishnan   +2 more
doaj   +1 more source

Dual-Frequency, Dual-Mode Reconfigurable Digital Atmospheric Radar Receiver Design

open access: yes
A new dual-frequency, dual-mode reconfigurable digital receiver based on Field-Programmable Gate Array (FPGA) dynamic reconfiguration is proposed, which is based on a common hardware platform of high-bandwidth RF front-end, high-speed data acquisition ...
Bing Cai   +6 more
core   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

open access: yesFEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh   +2 more
wiley   +1 more source

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

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

Type I interferons modulate autophagy to shape gemcitabine response in pancreatic cancer cells

open access: yesFEBS Open Bio, EarlyView.
Type I interferons differentially modulate autophagy and the response of pancreatic cancer cells to gemcitabine. IFNα2b stimulates autophagic flux and protects cells from gemcitabine‐induced cell death, contributing to chemoresistance. In contrast, IFNβ1a inhibits autophagosome formation and enhances gemcitabine‐induced cell death, resulting in ...
Lucy E. Bonilla   +10 more
wiley   +1 more source

Leveraging Digital Maps to Visualize Data in Doppler Effect-based Localization System Relying on GNSS

open access: yesJournal of Telecommunications and Information Technology
This paper presents a localization solution exploiting the Doppler effect, digital maps and the Global Positioning System (GPS). To deploy such a system, the following steps must be completed: selecting a suitable GPS receiver, developing operating ...
Rafał Szczepanik, Paweł Skokowski
doaj   +1 more source

Peningkatan Unjuk Kerja Sistem Transmisi Komunikasi Digital pada Penerima dengan Menggunakan Teknik Diversity Equal Gain Combining

open access: yesJurnal Nasional Teknik Elektro, 2016
In digital communication systems, the presence of fading and noise in the channel will disrupt or degrade the performance of digital communication system.
Baharuddin, Ondri Yudha Rusli
doaj   +1 more source

Design of BPSK modulated high dynamic telemetry digital receiver

open access: yes, 2011
In order to compensate the Doppler frequency drift and chip period variation of the BPSK-modulated telemetry receiver, a new all-digital-receiver structure is proposed.
Hu, Dong-Wei   +5 more
core  

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