SENDARANORDNING OCH MOTTAGARANORDNING I EN ANLEGGNING FOR OVERFORING AV ETT BESTEMT ANTAL BASBANDKANALSIGNALER

摘要

A single sideband system for digitally processing a given number of analog channel signals, provided with: a digital filter to which filter coefficients are applied which characterized a lowpass filter having a cut-off frequency which is equal to half the bandwidth of the channel signals; a fast fourier transformer to which a number of carrier signal functions is applied, which number is at least equal to twice the number of channel signals and each of which represents a carrier frequency, each frequency being an even multiple of the cut-off frequency of the lowpass filter.