ADAPTIVE EQUALISATION FOR COMMUNICATION SYSTEMS AT TRANSMITTER WITH FEEDBACK FROM RECEIVER

摘要

A method and apparatus for self adapting equalisation within communication systems is described. The method and apparatus employs adaptable equalisation elements located within one or more transmitters that are continuously adjusted based on decision feedback information relayed to it from one or more receivers. The equalisation elements within the transmitters Continuously receive adapting information from the receivers as part of a decision feedback loop via other transmitters normally present within a multi-way communications system. The adapting information is transmitted at a low frequency so as to be more robust and less sensitive to degradation than higher frequency signals transmitted within the system.