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.>

This paper describes a TV signal compression scheme which may become a common practice for analog video transmission and broadcast via satellite by the year 2000. The technique uses twodimensional interfield processing to reduce the video bandwidth with minimum degradation in subjective quality, and time multiplexed with analog multiplexing technique for transmission in component format. Computer simulations of the processing technique on the test slides, and analysis of subjective quality andS/Nexpected over a typical satellite link, are reported. A proof-of-concept prototype being developed at COMSAT Laboratories is also outlined.