Functional, simulation model for an experimental digital HDTV television system

Describes a test rig for HDTV, to investigate various television broadcast standards, such as Linequincunx and subsampling. Attention is paid to signal processing in the TV transmitter and a transmitter block diagram is presented. Proposals are also made for a digital TV receiver and 'operating windows' for filter design are shown, based either on intermediate lines or on 'progressive' operation. A functional simulation system for TV systems was constructed, in which the various subunits were connected by Ethernet, with availability of several Micro-Vax computers. Examples of TV picture sequences with various noise reduction algorithms are reproduced. Luminance and chrominance processing are described in detail.