Time-multiplexed video transmission system: a bandwidth efficient technique for high-quality television transmission via satellite
暂无分享,去创建一个
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. >
[1] B. G. Haskell. Time-frequency multiplexing (TFM) of two NTSC color TV signals — simulation results , 1981, The Bell System Technical Journal.
[2] B. G. Haskell,et al. TV bandwidth compression techniques using time-companded differentials and their applications to satellite transmissions , 1982, The Bell System Technical Journal.
[3] Lin-Nan Lee,et al. Time-Multiplexed Analog Transmission of Three Broadcast-Quality Television Channels Through One Satellite Transponder , 1987, IEEE J. Sel. Areas Commun..