Identification and minimization of IIR tap coefficients for the cancellation of complex multipath in terrestrial television

Author

Sherratt, Robert Simon

Author_Institution

Dept. of Eng., Reading Univ., UK

Volume

6

Issue

6

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

703

Lastpage

706

Abstract

By using a deterministic approach, an exact form for the synchronous detected video signal under a ghosted condition is presented. Information regarding the phase quadrature-induced ghost component derived from the quadrature forming nature of the vestigial sideband (VSB) filter is obtained by crosscorrelating the detected video with the ghost cancel reference (GCR) signal. As a result, the minimum number of taps required to correctly remove all the ghost components is subsequently presented. The results are applied to both National Television System Committee (NTSC) and phase alternate line (PAL) television

Keywords

IIR filters; correlation methods; filtering theory; interference suppression; minimisation; multipath channels; parameter estimation; television broadcasting; television interference; video signal processing; IIR tap coefficients; NTSC TV; National Television System Committee; PAL TV; TV broadcasting; VSB; crosscorrelation; deterministic approach; filter coefficients identification; filter coefficients minimization; ghost cancel reference signal; ghosted condition; multipath cancellation; phase alternate line television; phase quadrature-induced ghost component; synchronous detected video signal; terrestrial television; vestigial sideband filter; Costs; Delay effects; Digital signal processing; Filters; Minimization; Phase detection; Reflection; Signal detection; TV; Transmitters;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/76.544745

Filename

544745