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Real-time error-suppression method and apparatus therefor

  • US 6,606,583 B1
  • Filed: 09/21/1999
  • Issued: 08/12/2003
  • Est. Priority Date: 09/21/1998
  • Status: Expired due to Fees
First Claim
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1. A signal measurement method incorporating real-time. error suppression, said method comprising:

  • establishing a frequency band, all frequencies of which are within ten percent of a center frequency thereof;

    acquiring a first signal at a first frequency within said frequency band;

    obtaining a second signal at a second frequency within said frequency band, said second frequency being offset from said first frequency;

    combining said first and second signals to produce a third signal;

    propagating said third signal over a signal path capable of inducing errors into said third signal to produce a fourth signal;

    separating said fourth signal into a fifth signal and a sixth signal;

    comparing said sixth signal against said second signal to determine a correction factor; and

    applying said correction factor to said fifth signal to extract a replica of said first signal therefrom.

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