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Robust noise estimation

  • US 8,078,461 B2
  • Filed: 11/17/2010
  • Issued: 12/13/2011
  • Est. Priority Date: 05/12/2006
  • Status: Active Grant
First Claim
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1. An enhancement system operative to estimate noise, comprising:

  • a spectrum monitor operative to divide a portion of a received signal at more than one frequency resolution;

    a plurality of logical devices programmed to track characteristics of an estimated noise in the received signal and modify a plurality of noise adaptation rates of portions of the received signal divided at a first frequency resolution; and

    a limiting logic operative to constrain the modified plurality of noise adaptation rates.

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