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Determination of positions

  • US 9,285,408 B2
  • Filed: 11/04/2011
  • Issued: 03/15/2016
  • Est. Priority Date: 12/21/2010
  • Status: Active Grant
First Claim
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1. A method for position determination, comprising:

  • obtaining, by processing circuitry and via a receiver, electronic radio signals from stationary transmitters;

    obtaining, by the processing circuitry and via an input interface, sensor data from at least one sensor;

    determining, by the processing circuitry, a first sequence of positions by processing the electronic radio signals from the stationary transmitters;

    determining, by the processing circuitry, a second sequence of positions by dead reckoning processing of the sensor data;

    comparing, by the processing circuitry, the determined first sequence of positions to the determined second sequence of positions;

    ascertaining position information, by the processing circuitry and based on the comparison, wherein the position information is a resulting sequence of positions that represents a deviation of the first and second sequences of positions from each other; and

    optimizing the first sequence of positions by;

    differentiating the determined first sequence of positions; and

    weighting the differentiated determined positions based on the resulting sequence of positions to correct the deviation.

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