VIDEO DEGHOSTING USING ADAPTIVE ECHO DETECTING IIR FILTERS

This paper describes a novel Adaptive Channel Equalizer (ACE), designe d within the frame of the Europroject JESSI AE45B IQTV. According to a n architectural indirect approach, the defined deghosting algorithm up dates adaptively the system filter coefficients, to minimize the diffe rence between the actual system output and the desired output signal. Thanks to an I.I.R. filtering structure and to anovel deghosting algor ithm, able to decrease effectively the filter coefficient number, the system hardware complexity is remarkably reduced compared to the class ic echo cancelling solutions. This feature makes ACE attractive for a single-chip VLSI implementation.