New ghost reduction tuner using a training method

Author

Miki, Yutaka ; Kobo, Kazuo ; Uyeda, Kazuya ; Shimbo, Hiroyasu ; Sasaki, Mikio

Author_Institution

Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

Volume

36

Issue

3

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

247

Lastpage

253

Abstract

A new ghost reduction tuner, based on the GCR (ghost cancel reference) signal, has been developed. A GCR signal is inserted into the vertical blanking intervals of an NTSC television signal. At the receiver a digital ghost canceler uses the GCR signal to reduce ghost interference due to complex echoes including multiple and long-delay ghosts. A training method was adopted in the signal processing. By comparison with the conventional time-domain iterative calculations, the system stability is far superior. The ghost can be canceled in 2 s

Keywords

interference suppression; television equipment; television interference; tuning; video signals; GCR signal; NTSC television signal; digital ghost canceler; echoes; ghost cancel reference; ghost interference reduction; ghost reduction tuner; long-delay ghosts; multiple ghosts; signal processing; system stability; training method; vertical blanking intervals; Blanking; Industrial training; Interference cancellation; Interference elimination; Iterative methods; Signal processing; TV interference; Transversal filters; Tuned circuits; Tuners;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.103129

Filename

103129