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http://dx.doi.org/10.5909/JBE.2010.15.3.414

The Analysis of TxID Signal's Effect to Legacy Receivers in ATSC DTV System  

Mok, Ha-Kyun (Broadcast Technical Research Institute, KBS)
Park, Sung-Ik (Broadcasting System Research Department, ETRI)
Lee, Jae-Kwon (Broadcast Technical Research Institute, KBS)
Ryu, Ho-Jin (Broadcast Technical Research Institute, KBS)
Kim, Heung-Mook (Broadcasting System Research Department, ETRI)
Publication Information
Journal of Broadcast Engineering / v.15, no.3, 2010 , pp. 414-425 More about this Journal
Abstract
When we implement the single frequency network (SFN) in ATSC terrestrial DTV system, there is an interference problem to DTV receivers due to the use of same frequency channel among transmitters and repeaters. To resolve this problem, it is recommended to adopt the transmitter identification signals in transmitting equipments. In this paper, we analyzed the influence suffered by legacy DTV receivers when the TxID signal is added to the DTV transmitting signals and the results were further verified by computer simulation, laboratory test and field test. The above tests show that if the TxID signal is added to the level of -30dB compared to the original DTV signal, the TOV(Threshold Of Visibility) increment in legacy receivers is about 0.17 dB. It means that we can insert and transmit the TxID signal in ATSC terrestrial DTV system without making the negative effect to the legacy DTV receivers.
Keywords
SFN; ATSC; DTV; TxID; TOV;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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