Video channels characterization for advanced television

Author

Caron, Bernard

Author_Institution

Commun. Res. Center, Ottawa, Ont., Canada

Volume

35

Issue

3

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

178

Lastpage

183

Abstract

Some of the video channel characteristics needed to evaluate the effect of over-the-air and cable transmission channels on conventional or advanced television (ATV) signals are presented. Field measurements were performed by the Communications Research Centre to evaluate the performance of the Canadian teletext system. The expected performance for the digital part of an ATV transmission system is indicated. Over-the-air reception was shown to be very good except at 10% of the sites in urban areas and 25% of those in hilly areas. Cable distribution gave good results if the signal at the head-end was not distorted. Adaptive equalization should improve marginal sites. Additional data collected during the field tests can be used to reproduce video channel characteristics in the laboratory

Keywords

cable television; high definition television; telecommunication channels; teletext; television broadcasting; video signals; ATV transmission system; Canada; Communications Research Centre; adaptive equalisation; advanced television; cable distribution; cable transmission channels; field measurements; field tests; head-end; hilly areas; laboratory; over the air channels; over the air reception; teletext system; urban areas; video channel characteristics; Adaptive equalizers; Cable TV; Distortion; HDTV; Laboratories; Performance evaluation; Power cables; Teletext; Testing; Urban areas;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.44270

Filename

44270