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Method and circuit for non-cooperative interference suppression of radio frequency signals

  • US 5,339,456 A
  • Filed: 12/11/1991
  • Issued: 08/16/1994
  • Est. Priority Date: 12/11/1991
  • Status: Expired due to Term
First Claim
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1. A circuit for separating a radio frequency signal of interest from an interfering signal, said circuit comprising:

  • means for receiving a composite signal and for producing first and second signals, said first signal being representative of the composite signal and said second signal being representative of the envelope of the composite signal, wherein the composite signal includes the interfering signal and the signal of interest;

    means for removing selected components from the second signal to produce a filtered signal; and

    a first mixer for mixing the filtered signal with the first signal, to produce an output signal including a component representative of the signal of interest having a greater spectral power density than other components of the output signal.

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