Abstract
.MNO/3D HDTV & OPQ2RS TATSC (Advanced Television Systems Committee) [2] UVW1AXYZ[ Q2\R]>^_R`V. ATSC [2]aSbATSC [1]XY3cd3QR], U>e QfghiOj ,TOV (Threshold of Visibility)O klf g^>L[R`V. mQn A, fg om ^_R`V.AbstractIn this paper, we propose a frame structure for modified ATSC transmission systems which is used for a terrestrial 3D HDTV broadcasting. The modified ATSC transmission systems [2] see the potential of increasing a transmission capacity at reasonable TOV (Threshold of Visibility) by modifying channel codes of conventional ATSC systems and varying modulations. We use PN symbols (Pseudorandom Noise) in a guard interval which is used for avoiding the ISI (Inter Symbol Interference) to estimate and compensate the time-varying multi path channel effectively with a maximum transmission payload. With PN symbols in the guard interval, a CIR (Channel Impulse Response) in a time domain can be estimated and a compensation in a frequency domain can be achieved for the accurate channel estimation and compensation. The prosed frame structure is applied to the modified ATSC systems and computer simulations are performed for SER (Symbol Error Rate) performances in TU (Typical Urban)-6 Channel.Keyword: Terrestial 3D HDTV broadcasting, Modified ATSC system, Frame structureMN
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