Method and apparatus for computing signal correlation

  • US 6,606,346 B2
  • Filed: 05/18/2001
  • Issued: 08/12/2003
  • Est. Priority Date: 05/18/2001
  • Status: Expired due to Term
First Claim
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1. A method for computing correlations of a digital signal with a pseudorandom reference code, where said digital signal comprises a repeating code, the method comprising:

  • a) dividing a pseudorandom reference code into a plurality of code segments;

    b) selecting a code segment;

    c) forming an inner product between said selected code segment and a portion of said repeating code of said digital signal to produce a partial correlation;

    d) repeating steps b) and c) to produce a plurality of partial correlations;

    e) summing the plurality of partial correlations as each partial correlation is produced to form a plurality of correlations.

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