Cellular communications channelizer

A channelizer for recovering communication channels, the channelizer comprising:

• a resampling filter comprising an input data rate input coupled to resampling circuitry, and an output data rate output coupled to the resampling circuitry;
• a discrete Fourier transform (DFT) circuit coupled to the output data rate output;
• and
• a plurality of individual recovered channel outputs coupled to the DFT circuit,
• wherein the second data rate is commensurate with a preselected communication channel spacing, communication channel output sample rate, and number of communication channels.

A method for recovering individual communication channels from a received signal, the method comprising:

• receiving a transmitted signal spanning multiple communication channels;
• digitizing the transmitted signal to form a digitized input signal;
• resampling the digitized input signal from an input data rate to an output data rate to provide a resampled signal;
• and
• performing an n-point discrete Fourier transform (DFT) on the resampled signal to recover individual communication channels,
• wherein the second data rate is commensurate with a preselected communication channel spacing, communication channel output sample rate, and number of communication channels.