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Method and apparatus for performing signal correlation

  • US 20020175857A1
  • Filed: 02/22/2002
  • Published: 11/28/2002
  • Est. Priority Date: 05/18/2001
  • Status: Active Grant
First Claim
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1. A receiver of global positioning system (GPS) signals comprising:

  • a decimation circuit for producing a subsampled in-phase (I) signal and a subsampled quadrature (Q) signal from received GPS signals;

    a quantizer for producing quantized I and Q samples from the subsampled I and Q signals;

    a convolution processor for producing I and Q correlations.

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