Results 11 to 20 of about 4,315,310 (343)

Antenna Array Construction Synthesis

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2018
The problem of linear antenna construction synthesize is first formulated and solved. Linear antenna consists of antenna array (AR) and power divider (PD). Linear omnidirectional AR with cosecant pattern is synthesized using partial-beam method.
V. V. Nikitin, A. D. Frantsuzov
doaj   +1 more source

Digital Radio in Brazil: Not left, nor right. Let’s move forward | Radio Digital no Brasil: nem à esquerda, nem à direita. Vamos em frente

open access: yesLiinc em Revista, 2017
RESUMO Este artigo se volta para a iminente definição do Sistema Brasileiro de Rádio Digital (SBRD), tendo como objeto privilegiado de análise o middleware Ginga, desenvolvido para a TV Digital Interativa Brasileira. Aponta para a importância da pesquisa
Thiago Oliveira da Silva Novaes
doaj   +1 more source

Experimental evidence for the sensitivity of the air-shower radio signal to the longitudinal shower development [PDF]

open access: yes, 2012
We observe a correlation between the slope of radio lateral distributions, and the mean muon pseudorapidity of 59 individual cosmic-ray-air-shower events.
A. Chiavassa   +62 more
core   +4 more sources

Angle inversion based on anti-jamming against deceptive multiple false targets

open access: yesThe Journal of Engineering, 2019
Based on digital radio frequency memory technology, jammers can copy the radar signal multiple times by different time delay and frequency shift to form deceptive multiple false targets.
Kaiqiang Liu   +4 more
doaj   +1 more source

FM radio: family interplay with sonic mementos [PDF]

open access: yes, 2010
Digital mementos are increasingly problematic, as people acquire large amounts of digital belongings that are hard to access and often forgotten. Based on fieldwork with 10 families, we designed a new type of embodied digital memento, the FM Radio.
Dib, Lina   +4 more
core   +1 more source

Performance Evaluation of Full-Duplex IAB Multi-Cell and Multi-User Network for FR2 Band

open access: yesIEEE Access, 2021
One of the approaches to support high data rates in beyond 5G cellular networks is the dense deployment of the small cell millimeter-wave (frequency range 2 (FR2)) ( $>24.5$ GHz) base stations. However, this dense deployment of base stations leads to
A. Bishnu, M. Holm, T. Ratnarajah
doaj   +1 more source

Smart noise jamming suppression method based on fast fractional filtering

open access: yesThe Journal of Engineering, 2019
Smart noise jamming based on digital radio frequency memory (DRFM) has both oppressive jamming effect and deceptive jamming effect, and it is difficult to be effectively suppressed by traditional anti-jamming methods.
Bowen Han   +3 more
doaj   +1 more source

Target detection approach for DRM-based passive bistatic radar

open access: yesThe Journal of Engineering, 2019
This study discussed the problem of target detection for digital radio mondiale (DRM)-based passive bistatic radar (PBR). In the surveillance signal, the power of zero Doppler contribution (ZDC) is stronger than the echoes of weak targets.
Zhixin Zhao   +4 more
doaj   +1 more source

Digital radio over fibre for future broadband wireless access network solution [PDF]

open access: yes, 2010
Copyright @ 2010 IEEEDigital systems are more flexible and environment-process-tolerant than analogue systems. They are more reliable and robust against cross-talk, interference and channel noises, and are capable of covering higher dynamic range than ...
Abdollahi, SR   +3 more
core   +1 more source

Toward Terabit Digital Radio over Fiber Systems: Architecture and Key Technologies

open access: yesIEEE Communications Magazine, 2019
To support massive deployment of broadband radio applications, such as 5G and high-definition videos for terrestrial televisions, large system capacity and high spectrum efficiency are highly demanded in radio over fiber (RoF) systems.
Lu Zhang   +15 more
semanticscholar   +1 more source

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