Results 191 to 200 of about 6,338 (217)
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Compact DVB-T printed monopole antenna
2010 International Workshop on Antenna Technology (iWAT), 2010In this paper, a printed loaded monopole antenna with a low profile is proposed for car DVB-T antenna applications. By loading a resistor and using lumped LC components for impedance matching, the proposed antenna achieves a DVB-T bandwidth of gains better than −6 dBi, covering the frequency range from 470 to 862 MHz, and with a stable omni-directional
null Xianling Liang +3 more
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9th Conference and Exhibition of the SMPTE Australia Section, 1999
This paper is of interest to anyone who is responsible for operating and maintaining a DVB-T (COFDM) transmitter. We examine the OFDM Transmitter starting with the interface to the exciter. We look at data randomizing, Reed-Solomon Coding, Convolutional encoding, Trellis encoding and Viterbi Decoding.
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This paper is of interest to anyone who is responsible for operating and maintaining a DVB-T (COFDM) transmitter. We examine the OFDM Transmitter starting with the interface to the exciter. We look at data randomizing, Reed-Solomon Coding, Convolutional encoding, Trellis encoding and Viterbi Decoding.
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2004
The DVB-T standard and its complicated OFDM modulation method have now been discussed thoroughly. The present chapter deals with methods for testing DVB-T signals in accordance with the DVB Measurement Guidelines ETR 290 and also beyond these. The requirement for measurements is much greater in DVB-T than in the other two transmission path systems DVB ...
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The DVB-T standard and its complicated OFDM modulation method have now been discussed thoroughly. The present chapter deals with methods for testing DVB-T signals in accordance with the DVB Measurement Guidelines ETR 290 and also beyond these. The requirement for measurements is much greater in DVB-T than in the other two transmission path systems DVB ...
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Verifying the DVB-T specification
IEE Afternoon Seminar on Digital Television Broadcasting, 1998The Validate project started work in November 1995, when the DVB-T (digital terrestrial television transmission) specification was close to being finalised. It verified in detail the DVB-T specification and carried out technical work that will speed up the start of services. Validate is part of the ACTS programme sponsored by the European Commission as
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2010
Der DVB-T-Standard mit seinem sehr aufwandigem Modulationsverfahren COFDM wurde nun sehr ausfuhrlich diskutiert. In diesem Kapitel werden Messverfahren an DVB-T Signalen erlautert. Aufgrund des sehr komplexen terrestrischen Ubertragungsweges, des deutlich aufwandigeren DVB-T-Modulators und des dort meist benutzten analogen IQ-Modulators ist der ...
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Der DVB-T-Standard mit seinem sehr aufwandigem Modulationsverfahren COFDM wurde nun sehr ausfuhrlich diskutiert. In diesem Kapitel werden Messverfahren an DVB-T Signalen erlautert. Aufgrund des sehr komplexen terrestrischen Ubertragungsweges, des deutlich aufwandigeren DVB-T-Modulators und des dort meist benutzten analogen IQ-Modulators ist der ...
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Planning a Mobile DVB-T Network for Colombia
IEEE Latin America Transactions, 2009The TV evolution and the need of better quality and new services for the users have accelerated the migration from analogue to digital TV, forcing a renovation process in all fields of this communication system. Most of the DVB-T networks deployed in the world have been designed for fixed rooftop reception.
Jaime Lopez +3 more
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High range resolution multichannel DVB-T passive radar
IEEE Aerospace and Electronic Systems Magazine, 2012The exploitation of multiple DVB-T channels for a passive radar system has been considered to enhance the radar range resolution. A preliminary study has focused on the AF analysis to verify the suitability of a multichannel DVB-T signal for radar applications.
CONTI M +5 more
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Exposure to electromagnetic field from DVB-T transmitter
2013 21st International Conference on Software, Telecommunications and Computer Networks - (SoftCOM 2013), 2013This paper deals with electromagnetic field exposure from the DVB-T transmitter in the urban environment. The quality of the antenna installation and beam direction were tested with respect to nearby places of long-term exposure. The measurements of electric field were performed at several key locations.
Juričev-Sudac, Luka +1 more
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International Broadcasting Conference (IBC), 1997
The D-ONE modulator is a DVB-T modulator "case study" that represents second generation equipment with the main purpose of offering several improvements compared to previous generation equipment. First generation equipment was aimed at experimental work and did not require any particular performance in terms of cost, ruggedness and size.
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The D-ONE modulator is a DVB-T modulator "case study" that represents second generation equipment with the main purpose of offering several improvements compared to previous generation equipment. First generation equipment was aimed at experimental work and did not require any particular performance in terms of cost, ruggedness and size.
openaire +1 more source
Quad channel DVB-T based passive radar
2016 17th International Radar Symposium (IRS), 2016The detection performance of the passive radars systems is limited by the direct path interference. The application of digital beamforming antenna arrays in the surveillance channel has been proposed so far. The suppression can be accomplished with the proper beampattern synthesization.
Tamas Peto, Rudolf Seller
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