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High sensitivity satellite positioning system receiver

  • US 8,730,101 B2
  • Filed: 05/13/2010
  • Issued: 05/20/2014
  • Est. Priority Date: 05/13/2010
  • Status: Active Grant
First Claim
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1. A method of acquiring a satellite positioning system (SPS) signal with a substantially stationary or semi-stationary device, the method comprising:

  • receiving an external clock signal at the substantially stationary or semi-stationary device through a wired interface;

    driving an oscillator to a desired frequency that is aligned with a scaled frequency of the external clock signal to generate an internal clock signal;

    receiving an SPS signals;

    receiving predicted SPS data comprising SPS sensitivity assistance data through the wired interface; and

    integrating the received SPS signal over multiple navigation data bits using the internal clock signal to acquire the SPS signal, wherein the received SPS signal is coherently integrated using the received predicted SPS data.

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