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Pseudo-noise correlator for GPS spread-spectrum receiver

  • US 6,724,811 B2
  • Filed: 03/13/2002
  • Issued: 04/20/2004
  • Est. Priority Date: 04/25/1996
  • Status: Expired due to Term
First Claim
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1. A system for operating a GPS C/A code receiver comprising:

  • a plurality of channel means, each comprising, means for forming x multibit digital segment values per C/A code period, each multibit digital segment value representing a sequential code segment of a received composite of satellite signals; and

    a plurality of correlating means for correlating each digital segment value with n satellite specific sets of in differently time delayed segments of C/A code modulation to form at least n times in time delay specific correction values, wherein x, m, and n are each prime factors of a number of code chips per C/A code period.

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