Automatic identification of impairments caused by intermodulation distortion in cable television pictures

TitleAutomatic identification of impairments caused by intermodulation distortion in cable television pictures
Publication TypeJournal Article
Year of Publication1992
AuthorsWard, R. K., and Q. Zhang
JournalBroadcasting, IEEE Transactions on
Volume38
Pagination60 -68
Date Publishedmar.
ISSN0018-9316
Keywords2D DFT, automatic detection, automatic recognition, cable television, cable television pictures, cable TV, electric distortion, fast Fourier transforms, intermodulation, intermodulation beats, intermodulation distortion, mathematical model, monitoring, television interference, television reception, TV signal, two-dimensional discrete Fourier transform, video signals
Abstract

The authors study the feasibility of automatically monitoring a television picture for the purpose of knowing whether or not impairments resulting from intermodulation beats are present. They develop a mathematical model for the intermodulation beats and show that the theoretical results confirm the experimental ones. These results show that by using the two-dimensional discrete Fourier transform of a picture the automatic detection and recognition of intermodulation distortion is feasible. The results demonstrate, contrary to common belief, that it is possible to monitor the signal in a nonintrusive fashion

URLhttp://dx.doi.org/10.1109/11.127429
DOI10.1109/11.127429

a place of mind, The University of British Columbia

Electrical and Computer Engineering
2332 Main Mall
Vancouver, BC Canada V6T 1Z4
Tel +1.604.822.2872
Fax +1.604.822.5949
Email:

Emergency Procedures | Accessibility | Contact UBC | © Copyright 2020 The University of British Columbia