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Systems, methods, and apparatus for impulse noise mitigation

  • US 20070036239A1
  • Filed: 01/11/2006
  • Published: 02/15/2007
  • Est. Priority Date: 08/12/2005
  • Status: Active Grant
First Claim
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1. A method of signal processing, said method comprising:

  • based on a multicarrier signal received over a transmission channel, estimating a response of the transmission channel; and

    estimating a plurality of data values carried by the received multicarrier signal, said estimating including;

    calculating a reference signal based on (A) the estimated response of the transmission channel and (B) a known pattern of data values carried by the received multicarrier signal;

    based on a time-domain difference between the reference signal and a portion of the received multicarrier signal carrying the plurality of data values, calculating a noise estimate; and

    in a frequency domain and according to the noise estimate, compensating the portion of the received multicarrier signal carrying the plurality of data values.

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