Wideband receiver with interferer rejection

A wideband multi-channel receiver system, comprising:

• one or more antennas for receiving a plurality of signals across a wide band of frequencies;
• a plurality of band-pass filters in signal communication with the antenna unit, each of the band-pass filters configured to receive signals from some of the one or more antennas, the band-pass filters having different respective passbands and each band-pass filter configured to filter the signals from the some of the one or more antennas to produce a set of first filtered signals in the passband of the band-pass filter;
• an interference mitigation unit including at least one set of one or more tunable filters in signal communication with the band-pass filters configured to filter each set of the first filtered signals received from the band-pass filters to produce a corresponding set of second filtered signals;
• a plurality of gain control units in signal communication with the interference mitigation unit, each gain control unit configured to produce a gain adjusted version of signals for each set of second filtered signals;
• and
• a processing unit configured to process the plurality of signals across the wide band of frequencies so as to:
• identify at least one undesired signal in the pass-band of one of the band-pass filters, and extract signal information associated with the at least one undesired signal,
• wherein at least one of the tunable filters is tuned based at least in part on the signal information, extracted by the processing unit, associated with the at least one undesired signal to maintain a signal-to-noise ratio of a desired signal in the pass-band of the one of the band-pass filters above a threshold level at an output of a corresponding one of the gain control units.

A method for receiving signals, the method comprising:

• receiving signals, at one or more antenna, across a wide band of frequencies during a frame time associated with a communication frame of a desired signal;
• continually monitoring the received signals by processing the received signals that are received during a message sub-frame time of the communication frame to:
• i) identify one or more undesired signal in the wide band of frequencies that occur during the message sub-frame time, and ii) extract signal characteristics of the one or more undesired signal;
• tuning at least one tunable filter based at least in part on the extracted signal characteristics of the one or more undesired signal and filtering the received signals by passing the received signals through the at least one tunable filter to produce filtered signals;
• and
• passing the filtered signals through gain control circuitry to produce a gain adjusted version of the filtered signals, wherein the at least one tunable filter is tuned based at least in part on the extracted signal characteristics of the one or more undesired signal so to maintain a signal-to-noise ratio of the desired signal above a threshold level at output of the gain control circuitry.