Results 71 to 80 of about 3,377 (239)

Antenna system with omnidirectional radiation pattern for systems with phase algorithms of direction finding [PDF]

open access: yesITM Web of Conferences, 2019
Ommidirectional in azimuth plane antennas with horizontal polarization are used in communication systems of McWILL standard, digital television systems of DVB-T2 standard, radio monitoring systems, semi-active ranging using the target illumination with ...
Zhuravlev Alexander   +5 more
doaj   +1 more source

Optimization of the Digital Terrestrial Television Transmission Mode of DVB-T2 in Colombia [PDF]

open access: yes, 2015
In December 2011, Colombia updated its national Digital Terrestrial Television (DTT) standard from DVB-T to DVB-T2, the second generation of the DVB (Digital Video Broadcasting) project. DVB-T2 is the current state-of-the art DTT system in the world, and
Cardona Marcet, Narciso   +3 more
core   +1 more source

The effects of different extraction methods on essential oils from orange and tangor: From the peel to the essential oil

open access: yesFood Science &Nutrition, Volume 12, Issue 2, Page 804-814, February 2024.
This study investigated the changes of the volatile compounds in orange and tangor peels and the essential oils prepared using different extraction methods: hydrodistillation and cold pressing. We provide comprehensive data on essential oils, especially those derived from oranges and tangors, to aid in selection of the appropriate extraction method for
Min Kyung Park   +4 more
wiley   +1 more source

Spectral Overlap Optimization for DVB-T2 and LTE Coexistence [PDF]

open access: yesIEEE Transactions on Broadcasting, 2018
In this paper, we analyze the spectral coexistence between the second generation terrestrial digital video broadcasting (DVB) and the long term evolution (LTE) networks. In particular, the global spectral efficiency (SE) of both systems is investigated when a partial spectral overlap between DVB and LTE signals occurs. Our contribution lies in twofold:
Hiba Bawab   +4 more
openaire   +4 more sources

Preamble design using embedded signalling for OFDM broadcast systems based on reduced-complexity distance detection

open access: yes, 2011
The second generation digital terrestrial television broadcasting standard (DVB-T2) adopts the so-called P1 symbol as the preamble for initial synchronization.
Chen, Sheng   +4 more
core   +1 more source

A fast disturbance cancellation scheme for orthogonal frequency division multiplexing‐based passive radar exploiting reciprocal filter

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 1, Page 56-67, January 2024.
This paper proposes a simple non‐adaptive approach for the suppression of direct signal and clutter contributions in a passive radar system based on orthogonal frequency division multiplexing transmissions, exploiting the properties of a reciprocal filter (RF).
Javier Trujillo Rodriguez   +3 more
wiley   +1 more source

OFDM comparison with FFT and DWT processing for DVB-T2 wireless channels

open access: yesInge-Cuc, 2018
Introduction: Recent studies on the FFT processing (Fast Fourier Transform) or DWT (Discrete Wavelet Transform) of the OFDM signal (Orthogonal Frequency Division Multiplexing) have shown pros and cons for DVB-T2 (Digital Video Broadcasting-Second ...
Hernan Paz Penagos
doaj   +1 more source

Mobile Communication Networks and Digital Television Broadcasting Systems in the Same Frequency Bands – Advanced Co-Existence Scenarios [PDF]

open access: yes, 2014
The increasing demand for wireless multimedia services provided by modern communication systems with stable services is a key feature of advanced markets.
Kaller, O.   +4 more
core   +1 more source

Optimasi Jaringan SFN pada Sistem DVB-T2 Menggunakan Metode Particle Swarm Optimization

open access: yesJurnal Teknik ITS, 2013
Di Indonesia perpindahan dari sistem analog ke sistem digital pada dunia pertelevisian saat ini sedang dalam proses. TV analog yang saat ini masih dipergunakan dianggap tidak lagi efisien, selain tidak memberikan kualitas layanan yang optimal, juga tidak
Oxy Riza Primasetiya   +2 more
doaj  

Research of electronic compensation methods of reserence signal in the surveillance channel of semi-active coherent bistatic DVB-T2 radar

open access: yesDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2019
This paper provides an overview of different electronic compensation methods of a reference signal. An algorithm for electronic compensation of the DVB-T2 direct signal in a semi-active coherent radar has been proposed.
P. I. Karpovich   +2 more
doaj   +1 more source

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