An adaptive ghost processor for broadcast television

Author

Pazarci, Melih

Author_Institution

IIT-Telecommun. Syst. Center, Chicago, IL, USA

Volume

35

Issue

3

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

184

Lastpage

194

Abstract

An adaptive recursive ghost processor subsystem, a smart system that minimizes TV ghosts and transmission distortions without producing new picture artifacts, is described. The ghost canceller structure and the processing algorithm are very efficient in the number of taps, performance, and convergence speed. The subsystem requires a training signal in the vertical interval and performs the ghost reduction in the baseband. A complex IIR (infinite impulse response) configuration with a nonlinear adaptation algorithm is used. The processor is usable in digital NTSC (National Television System Committee) and EDTV/HDTV (extended-definition/high-definition TV) receivers, and is intended for the reception of vestigial-sideband-format VHF/UHF cable and broadcast video distribution

Keywords

adaptive filters; interference suppression; picture processing; television broadcasting; television systems; EDTV; HDTV; IIR; TV ghosts; VHF/UHF cable; adaptive ghost processor; baseband; broadcast television; broadcast video distribution; convergence speed; digital NTSC; ghost canceller; ghost reduction; infinite impulse response; nonlinear adaptation algorithm; performance; picture artifacts; processing algorithm; smart system; taps; training signal; transmission distortions; vertical interval; vestigial-sideband-format; Baseband; Cable TV; Convergence; Digital video broadcasting; HDTV; High definition video; Nonlinear distortion; Power cables; TV broadcasting; TV receivers;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.44271

Filename

44271