Title :
A new method for multipath channel characterisation for terrestrial transmitted video
Author :
Sherratt, R.S. ; Pardoe, B.H.
Author_Institution :
Salford Univ., UK
Abstract :
Under the multipath conditions of terrestrial television transmission, ghost carriers cause additive information to be generated by the VSB filter within the television receiver. By analysis of this a priori effect of the VSB filter under a ghosted condition the inphase and phase quadrature detected video signals are defined. Derived from these results, a new algorithm based upon correlation techniques is presented which finds the characteristics of the amplitude and delay of individual ghosts. These characteristics are then passed to a deterministic deghoster to minimise ghost effects
Keywords :
FIR filters; correlation methods; delays; filtering theory; multipath channels; signal detection; television broadcasting; television interference; video signal processing; FIR filter; VSB filter; additive information; amplitude; correlation techniques; delay; deterministic deghoster; ghost carriers; ghost effects minimisation; inphase quadrature detected video signals; multipath channel; multipath conditions; phase quadrature detected video signals; television receiver; terrestrial television transmission; terrestrial transmitted video;
Conference_Titel :
Radio Receivers and Associated Systems, 1995., Sixth International Conference on
Conference_Location :
Bath
Print_ISBN :
0-85296-643-1
DOI :
10.1049/cp:19951110
