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Method for automatically controlling the bandwidth of a digital filter and adaptive filter utilizing same

  • US 5,371,695 A
  • Filed: 10/14/1993
  • Issued: 12/06/1994
  • Est. Priority Date: 10/14/1993
  • Status: Expired due to Fees
First Claim
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1. A method for automatically controlling the bandwidth of a digital filter in response to changes of condition of an input signal to the digital filter, the method comprising the steps of:

  • determining changes of condition of the input signal;

    defining fuzzy rules between the changes of condition of the input signal and a control signal;

    modifying the control signal based on the changes of condition and the fuzzy rules; and

    utilizing the modified control signal to control the bandwidth of the digital filter in real time so that the digital filter achieves good transient response and noise suppression.

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