Co-ordination channels for digital satellite news gathering(DSNG)

摘要

This paper presents, in Section 1, a new approach to realising co-ordination channels for digital satellite news gathering(DSNG). The key element of the approach to the co-ordination channels is a direct-sequence spread-spectrum processing of the data to be transited which allows for the realization of an in-band transmission of the co-ordination channel signals overlaying the DSNG main channel, the part of the system which is responsible for the transmission of the audio/video signal on a point-to-point basis.