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Determining the spatio-temporal and kinematic parameters of a signal receiver and its clock by information fusion

  • US 6,542,116 B1
  • Filed: 06/22/2001
  • Issued: 04/01/2003
  • Est. Priority Date: 06/22/2001
  • Status: Expired due to Term
First Claim
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1. A method for determining one or more target receiver parameter values wherein the one or more target receiver parameter values is a member of a set of receiver parameter values that are associated with a receiver, the method comprising the computer-implemented steps of:

  • step A;

    receiving from the receiver, sampled data associated with a received signal that is received at the receiver;

    step B;

    dividing the sampled data into a set of overlapping data segments;

    step C;

    receiving a set of information that is associated with;

    the set of receiver parameter values; and

    a set of signal parameter values;

    step D;

    determining a current region of uncertainty for the set of receiver parameter values using the set of information;

    step E;

    selecting a data segment that has not been previously selected to be selected data segment and performing the steps of;

    step F;

    selecting a signal source that has not been previously selected to be a selected signal source, wherein the signal source is from a set of signal sources associated with the receiver signal;

    step G;

    forming a selected data segment-source pair comprising the selected data segment and the selected signal source;

    step H;

    for the selected segment-source pair, determining in the current region of uncertainty one or more ranges of interest that correspond to the one or more target receiver parameter values;

    step I;

    using the selected segment-source pair and using the one or more ranges of interest that correspond to the one or more target receiver parameter values, determining one or more functions that correspond to the receiver parameter values and the signal parameter values;

    step J;

    updating the current region of uncertainty using the one or more functions; and

    step K;

    repeating steps E through K until the current region of uncertainty satisfies a pre-determined termination condition.

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