Abstract
This paper describes a portable HDTV digital codec and its transmission performance obtained in a transpacific field trial via an INTELSAT satellite with a transportable small earth station. This portable codec is designed for transmitting HDTV programs including 4 channels of high quality sound via a 72 MHz bandwidth transponder in an INTELSAT satellite, or via an ISDN H 4 channel in an optical fiber submarine cable. In order to realize the portable hardware for practical applications, the codec employs bit-reduction techniques whose algorithms are extremely simple from the viewpoint of hardware construction but are effective in achieving a high coding picture quality. From the results obtained in the field trial, it is concluded that an end-to-end international digital transmission of HDTV programs, wherein HDTV programs can be directly transmitted from the place of an event to a theater, is commercially viable using the codec in conjunction with the small earth station.
Published Version
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