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GNSS RECEIVER AND EXTERNAL STORAGE DEVICE SYSTEM AND GNSS DATA PROCESSING METHOD

  • US 20090091496A1
  • Filed: 10/07/2008
  • Published: 04/09/2009
  • Est. Priority Date: 10/08/2007
  • Status: Active Grant
First Claim
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1. A method of operating a GNSS signal -processing system, for processing GNSS signals from multiple satellite sources received by a receiver including a digital signal processor (DSP) and a general purpose central processing unit (CPU), which method comprises the steps of:

  • receiving raw analog GNSS ranging and timing signals;

    downconverting the raw analog GNSS signals to digital signals with an AD converter;

    correlating the digital signals with the digital signal processor (DSP);

    closing code and carrier tracking loops with the CPU;

    calculating a GNSS solution and communicating the GNSS solution with a user interface;

    providing output signals representing the GNSS positioning solution on a universal serial bus (USB); and

    storing said output signals on an external storage device.

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