A new detector for ghosted VIF signals
Sherratt, R. S. (1995) A new detector for ghosted VIF signals. In: Broadcasting Convention, 1995. IBC 95., International , 14-18 Sept 1995, Amsterdam, Netherlands, pp. 53-56.
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To link to this article DOI: 10.1049/cp:19950928
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.