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Software-defined GPS receivers and distributed positioning system

  • US 7,542,848 B2
  • Filed: 09/28/2004
  • Issued: 06/02/2009
  • Est. Priority Date: 09/28/2004
  • Status: Active Grant
First Claim
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1. A software-defined global positioning system (GPS) receiver, comprising:

  • a down converter circuit configured to receive GPS satellite signals and to down convert a frequency of received GPS satellite signals, wherein down-converted GPS satellite signals are generated when the down converter receives the GPS satellite signals;

    an analog-to-digital converter circuit connected to the down converter circuit, wherein the analog-to-digital converter circuit is configured to sample and digitize the down-converted GPS satellite signals, wherein digitized down-converted GPS satellite signals are generated when the analog-to-digital converter circuit samples and digitizes the down-converted GPS satellite signals;

    a processor connected to the analog-to-digital converter circuit; and

    a memory connected to the processor, wherein the memory stores an operating environment architecture and an application program that, when executed by the processor, processes the digitized down-converted GPS satellite signals to compute navigation, wherein the operating environment architecture is based on object-oriented methodology, and wherein the operating environment architecture is compliant with a standard open architecture framework.

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