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Time-multiplexed video transmission system: a bandwidth efficient technique for high-quality television transmission via satellite

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5 Author(s)
Kao, Y.-S. ; Sci. Technol. Inc., Rockville, MD, USA ; Lee, L.-N. ; Lin, T.L. ; Verahrami, F.B.
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A bandwidth-efficient television transmission technique called time-multiplexed video transmission (TMVT) is described. The TMVT system uses a two-dimensional filtering and interpolation technique to reduce the transmission bandwidth of TV signals, thereby increasing the utilization efficiency of a satellite transponder by approximately 50%. The system adopts the time-multiplexed component transmission scheme with a single carrier to eliminate interference between different TV signals transmitted through the same satellite transponder, and to avoid the intermodulation between the multiple FM carriers, as in the conventional frequency division multiplexing (FDM) approach. A prototype hardware system has been built and tested, with results closely matching the theoretical analysis

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Communications, IEEE Transactions on  (Volume:39 ,  Issue: 3 )