A Transmission System for Multichannel PCM Sound Broadcasting via Satellite

Abstract

A transmission system using one satellite broadcasting channel in the 12GHz band to broadcast many PCM high-quality sounds multiplexed by time division is presented. This multiplexed signal digitally modulation a carrier wave by using the orthogonal carrier modulation method. In this system, the frame format, Which has a 2.048Mb/s transmission bit-rate is a single channel sharing the transmission signal format of PCM sound for satellite TV broadcasting. This system can transmit 12-16 multiplexed channels by improving the effectiveness of error correction code and error control by range transmission. Transmission characteristics and sound-quality are assessed by a satellite transmission experiment. This system is found to be acceptable for sufficient sound quality broadcasting service, even if the received C/N is degraded.