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Global positioning system receiver with improved multipath signal rejection

  • US 6,259,401 B1
  • Filed: 04/14/1998
  • Issued: 07/10/2001
  • Est. Priority Date: 09/13/1996
  • Status: Expired due to Term
First Claim
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1. A global positioning system receiver comprising:

  • an inbound signal terminal to receive an inbound global positioning system signal having an inbound PRN code from a global positing system signal source, said inbound PRN code having a plurality of transitions;

    a local PRN code generator configured to generate a local PRN code;

    a discriminator coupled to said inbound signal terminal and to said local PRN code generator and configured to compare said inbound signal and said local PRN code and to generate a discriminator signal containing a waveform having positive and negative portions for each of said transitions in said inbound PRN code; and

    a processor coupled to said discriminator and configured to process said discriminator signal to measure a phase delay associated with said global positioning system signal.

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