PAL and HDTV transmission experiments using SDH networks

Author

Newell, J.C.

Author_Institution

BBC Res. & Develop. Dept., Tadworth, UK

fYear

1994

fDate

34478

Firstpage

42401

Lastpage

42405

Abstract

The BBC has been studying the use of SDH for internal routeing and external transmission of audio and video signals since the CCITT Recommendations appeared in the late 1980s. A prototype fibre-optic video routeing system was developed in RACE Project 1036 which used a combination of optical wavelength division multiplexing and electrical time-division multiplexing (WTDM). SDH was adopted as the multiplexing standard. Codecs were developed in RACE Project 1081 to allow PAL, HDTV and audio signals to be carried over this and other SDH networks. This paper describes this work and discusses the benefits SDH networks offer broadcasters

Keywords

high definition television; optical links; synchronous digital hierarchy; telecommunication networks; television broadcasting; time division multiplexing; wavelength division multiplexing; BBC; CCITT Recommendations; HDTV transmission; PAL transmission; RACE Project 1036; RACE Project 1081; SDH networks; audio signals; codecs; electrical time-division multiplexing; fibre-optic video routeing system; interfaces; multiplexing standard; optical wavelength division multiplexing; video signals;

fLanguage

English

Publisher

iet

Conference_Titel

Television Over New Networks (The Impact on SDH on Broadcasting), IEE Colloquium on (Digest No.1994/131)

Conference_Location

London

Type

conf

Filename

317001