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Channel impulse response (CIR)/DC offset (DCO) joint estimation block and method

  • US 8,565,351 B2
  • Filed: 04/28/2011
  • Issued: 10/22/2013
  • Est. Priority Date: 04/28/2011
  • Status: Active Grant
First Claim
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1. A channel impulse response (CIR)/DC offset (DCO) joint estimation block comprising:

  • an estimation CIR circuit responsive to a basic and a received midamble, each having a plurality of chips to provide an initial estimation of the CIR as a series of CIR taps;

    a DC offset compensation circuit responsive to said estimated series of CIR taps to produce a DC compensated CIR;

    a noise refinement circuit receiving said DC compensated CIR, filtering out the taps of a series of CIR taps below a predetermined noise level and passing a CIR estimation; and

    a DC offset estimation circuit responsive to said CIR estimation to provide a DC offset estimation.

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