procedure for the transmission of signals from narrow-band. bertragungskanäle

摘要

the sampled analog / digital picture signals are combined and changed blocks a transformationscodierung, in particular a cosinustransformation to the spektralkoeffizienten time successively to receiver transfer.erfindungsgemaess is constantly a ruecktransformation continued and reconstructed image during its deployment phase presented constantly, so that information about the fruehzeitig receivable image exists. this method can also be uebertragungskanaele on narrow-band images with gewuenschter schaerfe in auswaehlbaren parts transfer.it is the advantage that reaches the receiver in kuerzester time a low aufgeloestes image transfer, which will have the essential characteristics of the picture shows up. at a data rate of a few kbit / s is a rapid succession of low aufgeloesten images possible that bewegungsablaeufe recognizable.there is the additional advantage that the transfer of spektralkoeffizienten against uebertragungsfehler relatively insensitive. this type of bilduebertragung expected for many emergency services such aspolice, fire brigade, interesting, particularly because it is possible for certain parts of the image, for example, the middle area to build faster than the other. ...u.s.w