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DIGITAL AUTOMATIC GAIN CONTROL

  • US 20110116582A1
  • Filed: 11/19/2009
  • Published: 05/19/2011
  • Est. Priority Date: 11/19/2009
  • Status: Active Grant
First Claim
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1. An automatic gain control (“

  • AGC”

    ) system having an AGC gain and an AGC convergence speed, the AGC system comprising;

    a summation module configured to determine an error signal based at least in part on a received signal and a reference signal;

    a convergence module configured to generate a convergence speed gain for the AGC system based at least in part on the error signal, and output a scaled error signal,wherein the scaled error signal is based at least in part on the convergence speed gain and the error signal; and

    a feedback module configured to receive an input signal and output the AGC gain, the input signal based at least in part on the AGC gain and the scaled error signal,wherein the AGC convergence speed is substantially independent of a signal level of the received signal.

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