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Combined Parallel and Sequential Detection for GPS Signal Acquisition

  • US 20080015776A1
  • Filed: 07/16/2007
  • Published: 01/17/2008
  • Est. Priority Date: 06/27/2000
  • Status: Abandoned Application
First Claim
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1. A signal acquisition process comprising:

  • a) performing an acquisition dwell on a plurality of cells within a time/frequency uncertainty range to detect a set of cells having the largest correlation peaks;

    b) performing an initial verification dwell on the set of cells detected in step a by comparing the peak of each cell to a threshold and retaining those cells having a peak at least as great as the threshold;

    c) performing an acquisition dwell on another plurality of cells within the time/frequency uncertainty range to detect another set of cells having the largest correlation peaks; and

    d) performing a subsequent verification dwell on the cells retained in step b and an initial verification dwell on the set of cells detected in step c by comparing the peak of each cell to the threshold and retaining those cells having a peak at least as great as the threshold.

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