Field testing of a ghost canceling system for NTSC television broadcasting

Author

Tawil, Victor ; Claudy, Lynn D.

Author_Institution

Assoc. for Maximum Service Television, Washington, DC, USA

Volume

36

Issue

4

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

255

Lastpage

261

Abstract

A technology that can reduce the visual effect of multipath propagation and eliminate ghosts has been developed by the Broadcasting Technology Association of Japan (BTA). It was recently field-tested using over-the-air television signals. The BTA technology was effective in eliminating or reducing ghosts in nearly all the locations surveyed. The amount of improvement varied depending on the type and complexity of the ghosting impairment, but, in general, it was on the order of two steps, as measured on a five-step CCIR impairment scale. The technology was most effective in correcting static or nonvarying ghosting conditions, and least effective in the case of time-varying or rapidly changing propagation conditions

Keywords

electronic equipment testing; interference suppression; television broadcasting; television interference; television reception; television systems; BTA; Broadcasting Technology Association of Japan; NTSC; field testing; five-step CCIR impairment scale; ghost canceling system; multipath propagation; nonvarying ghosting conditions; propagation conditions; static ghosting conditions; television broadcasting; television signals; Broadcast technology; Cities and towns; Degradation; Delay; Distortion; Reflection; System testing; TV broadcasting; TV receivers; Visual effects;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.64475

Filename

64475