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Digital radio frequency interference canceller

  • US 6,014,412 A
  • Filed: 04/04/1997
  • Issued: 01/11/2000
  • Est. Priority Date: 04/19/1996
  • Status: Expired due to Term
First Claim
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1. A method for mitigating radio frequency (RF) interference in a multicarrier modulation system, said method comprising the operations of:

  • (a) obtaining frequency domain data associated with a frequency band;

    (b) identifying a restricted frequency sub-band within the frequency band;

    (c) estimating a frequency of the RF interference within the restricted frequency sub-band;

    (d) estimating the RF interference in accordance with a frequency domain model for the RF interference and the estimated frequency of the RF interference; and

    (e) removing the estimated RF interference from the frequency domain data.

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