SIGNAL PROCESSING APPARATUS AND METHOD

摘要

A normalisation apparatus arranged to normalise a first signal in relation to a second signal, the apparatus comprising a comparator arranged to discriminate the first signal, characterised in that the first signal is digital and the normalisation apparatus further comprises means for spreading th4e first signal over a predetermined energy distribution, and means for automatically adjusting a discrimination level of the comparator in response to a property of the second signal such that a proportion of the distributed signal is discarded by the comparator.