Abstract: A receiver front end processor for use in a receiver system accepts a data stream comprising samples of an entire frequency band, the band of frequencies being divided into two or more non-overlapping channels with each channel occupying no more than a predetermined maximum frequency band. The band being sampled at a rate of at least twice the frequency of the highest frequency in the band. The receiver front end processor converts, either in parallel or iteratively, the component channels to baseband signals sampled at twice the symbol rate of each of the channels. A single analog to digital converter may be employed to produce the sampled whole-band data stream operated upon by the receiver system's front end processor.

Abstract: A receiver for use in a communications system that employs digitally modulated signals operating in a band of frequencies that is divided into two or more non-overlapping channels, with each channel occupying no more than a predetermined maximum frequency band operates upon a data stream representative of the entire band, with each channel within the band converted to baseband and sampled at twice the symbol rate of the related channel. The receiver equalizes, provides phase and timing correction for each of the channels, cycling through the data related to each channel in sequence, thereby requiring only one the phase recovery, one timing recovery and one equalization circuit for all the channels within the multi-channel band, each of which is re-used for each channel.

Abstract: A communications system employs digitally modulated signals operating in a band of frequencies that is divided into two or more non-overlapping channels, with each channel occupying no more than a predetermined maximum frequency band. A receiver system includes a front end processor and a receiver, the front end processor being configured to receive a data stream that represents the entire frequency band sampled at a rate of at least twice the highest frequency within the frequency band. The front end processor operates produces an output data stream that represents each channel within the band, with samples for each channel within the band at a rate that is a multiple of the symbol rate for the given channel. A receiver operates on this data stream sequencing through the multiple channels to phase correct, time correct, and equalize the data stream for all the constituent channels.