Title :
A new detector for ghosted VIF signals
Author :
Sherratt, R.S. ; Pardoe, B.H.
Author_Institution :
Salford Univ., UK
Abstract :
Under multipath conditions, video intermediate frequency (VIF) detectors may generate a local oscillator phase error and consequently produce a dispersed detected signal due to the presence of additional IF carriers. A new detector is presented which by processing the detected phase quadrature information, derives the correct phase for synchronous detection in the presence of multipath effects. This minimises dispersion and produces a detected video signal with the linear addition of amplitude scaled ghosts
Keywords :
multipath channels; signal detection; television interference; video equipment; video signal processing; IF carriers; amplitude scaled ghosts; detected video signal; dispersed detected signal; ghosted VIF signals; local oscillator phase error; multipath conditions; multipath effects; phase quadrature information; synchronous detection; video intermediate frequency detectors;
Conference_Titel :
Broadcasting Convention, 1995. IBC 95., International
Conference_Location :
Amsterdam
Print_ISBN :
0-85296-644-X
DOI :
10.1049/cp:19950928
