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Cancellation of residual ghost VSB components from video IIR deghoster systems

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2 Author(s)
Sherratt, R.S. ; Telford Res. Inst. of Acoustics, Dept. of Electr. Eng., Salford Univ., UK ; Pardoe, B.H.

Certain deghosters suffer from the presence of distortion caused by the quadrature forming nature of the IF VSB filter operating on a ghosted IF signal. By analysing this a priori effect, a specific deghoster solution is found by using the phase quadrature detected IF signal to cancel the VSB induced ghost quadrature distortions from the detected inphase signal before deghosting takes place

Published in:

Electronics Letters  (Volume:31 ,  Issue: 9 )