Field Test Results Of A DTV Distributed Translator Network

Wang, Soo-Hyun; Suh, Young-Woo; Mok, Ha-Kyun; Lee, Jae-Young; Lee, Yong-Hoon; Kim, Heung-Mook

doi:10.5909/jbe.2008.13.4.463

Cited by 2 publications

(2 citation statements)

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“…The mountainous environment of Korea does not allow the three transmitters to cover the whole area of Seoul. To improve the coverage area, the Korean broadcasting companies have installed DTVRs near the occluded areas at Bulgwang, Baengnyeon, Jangwii, and Jeongneung [8]. The DTVRs demodulate, amplify, and re-modulate the DTV signals in order to retransmit the same signals.…”

Section: The Korean Dtv Broadcastmentioning

confidence: 99%

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Position determination using the DTV segment sync signal

Moon

Jee

Lee

2011

Int. J. Control Autom. Syst.

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As a supplement to the Global Positioning System (GPS) in an urban center and indoor environment, the digital television (DTV) segment sync signal can be employed to obtain a mobile user's position. Two DTV receivers and a counter are integrated to measure the time difference of arrival (TDOA) for a pair of received signals from a transmitter and its corresponding repeater (DTVR). Using the measurements from a transmitter and its multiple corresponding DTVR pairs, the mobile user position can be estimated using the recursive least square method. An experiment done in Seoul using two low-grade high resolution digital television (HDTV) receivers and a two-channel universal counter demonstrates that the mean value of the mobile user position measurement is accurate to 42.58 meters circular error probability (CEP).

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Section: The Korean Dtv Broadcastmentioning

confidence: 99%

“…In order to avoid mutual interference of the broadcast signals, the DTVRs' retransmissions use different physical channels by changing the carrier frequencies. The physical channel numbers of the DTV broadcasting in Seoul are listed in Table 2 [8]. The blanks denote the absence of physical channels for the corresponding DTVRs.…”

Section: The Korean Dtv Broadcastmentioning

confidence: 99%

Position determination using the DTV segment sync signal

Moon

Jee

Lee

2011

Int. J. Control Autom. Syst.

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Measurement of Vertical-Directional DTV Signal Level Using a Multi-Copter

Park¹,

Lim²,

Kim³

2014

Journal of Broadcast Engineering

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DTV field tests have been performed to measure field strength and to check reception ratio on indoor and outdoor sites. They use an antenna of 9m to measure DTV signal in case of outdoor measurement on the road. Modern skyscrapers require the analysis of vertical-directional wave propagation by measuring vertical-directional DTV signal. Even if the field strength is above the reception threshold of 43dBμV/m, the reception is impossible in case of strong multi-path or high impulse noise. So, vertical-directional field measurement is essential in environment of tall buildings. In this paper, we developed an octo type multi-copter to measure vertical-directional DTV signal level. A compact and portable DTV signal level meter, an antenna, a microwave transmitter for data transmission, and a recording equipment are equipped in the multi-copter. Three different sites are selected to test the measurement system. Developed measurement system using the multi-copter is very useful in measuring vertical-directional DTV signal, especially in apartments, non-accessible area by vehicles, and forbidden areas.

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Field Test Results Of A DTV Distributed Translator Network

Cited by 2 publications

References 0 publications

Position determination using the DTV segment sync signal

Position determination using the DTV segment sync signal

Measurement of Vertical-Directional DTV Signal Level Using a Multi-Copter

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