Architecture of exciter for digital radio and video transmitters (CROSBI ID 508107)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Grubeša, Tomislav ; Grubeša, Sanja ; Domitrović, Hrvoje
engleski
Architecture of exciter for digital radio and video transmitters
Modern radio-communications have begun the transition process from analog to digital radio-communications and broadcasting. During this transition process, main changes are required in exciter units of transmitters. The architecture of transmitters themselves is the same for both digital and analog broadcasting, but the exciters used for digital broadcasting have to create analog RF exciting signals for the transmitters from the digital data stream. The most common modulation procedure used in digital broadcasting systems is OFDM with QPSK or some kind of QAM keying of sub carriers. Apart from RF signal generation, the exciters are often responsible for control of the whole system, because control data is often included in the digital stream distributed from the broadcast center to the transmitters.
radio-communications; broadcasting; exciter units of transmitters
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Podaci o prilogu
2005.
objavljeno
Podaci o matičnoj publikaciji
ICECom 2005
Podaci o skupu
ICECom 2005 18th International Conference on Applied Electromagnetics and Communications
predavanje
12.08.2005-14.08.2005
Dubrovnik, Hrvatska