Simultaneous multiple channel receiver

A simultaneous multiple channel receiver (“SMCR”) for receiving a combined signal having a plurality of carrier signals, where each carrier signal in the plurality of carriers signals corresponds to a frequency channel, and in response producing a plurality of output data stream signals, the SMCR comprising:

• means for down-converting the combined signal;
• a plurality of digital signal processors, wherein each digital signal processor of the plurality of digital signal processors includes means for producing an output data stream signal of the plurality of output data stream signals;
• and
• a multi-band filter in signal communication with both the down-converting means and the plurality of digital signal processors;
• means for controlling in signal communication with the plurality of digital signal processors and multi-band filter;
• a frequency-offset module located in a signal path between the means for down-converting and the multi-band filter and in signal communication with the controlling means, wherein the frequency offset module pre-rotates the frequencies in a combined digitized ensemble of frequency channels (“CDEFC”) signal produced by the down-converting means by a pre-rotation value to correct for a common frequency offset of the plurality of digital signal processors, wherein the pre-rotation value is determined by the controlling means in response to receiving offset signals from the plurality of digital signal processors.

A method for simultaneously demodulating a combined signal having a plurality of carrier signals, where each carrier signal in the plurality of carrier signals corresponds to a frequency channel, in a simultaneous multiple channel receiver (“SMCR”), the method comprising:

• down-converting the combined signal to produce a combined digitized ensemble of frequency channels (“CDEFC”) signal;
• producing simultaneously a plurality of filtered digitized frequency channel signals from the CDEFC signal;
• and
• producing a plurality of output data stream signals from the plurality of filtered digitized frequency channel signals;
• wherein producing simultaneously a plurality of filtered digitized frequency channel signals from the CDEFC signal includes switching the CDEFC signal to a plurality of digital filters;
• wherein each digital filter of the plurality of digital filters produces a filtered digitized frequency channel signal;
• wherein producing a plurality of output data stream signals includes digital signal processing each filtered digitized frequency channel signal to produce an output data stream signal of the plurality of output data stream signals;
• pre-rotating the frequencies in the CDEFC signal by a pre-rotation value before producing simultaneously the plurality of filtered digitized frequency channel signals to correct for a common frequency offset of the digital signal processing of each filtered digitized frequency channel signal;
• receiving offset signals from a plurality of digital signal processors;
• and
• determining the pre-rotation value with a controller in response to the received offset signals.