METHODS AND SYSTEMS FOR IMPROVING THE ACCURACY OF EXPECTED ERROR ESTIMATION IN A HYBRID POSITIONING SYSTEM
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United States of America Patent
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Issued Date -
Dec 10, 2009
app pub date -
Jun 5, 2009
filing date -
Jun 6, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This disclosure describes methods and systems for improving the accuracy of expected error estimation in a hybrid positioning system. In some embodiments, the method of determining an expected error in a location determination of a WLAN and satellite enabled device can include determining a WLAN location estimate and an expected error estimate for the WLAN location estimate, obtaining measurements from at least two satellites, and determining the expected error of the location determination by evaluating the consistency of the satellite positioning system measurements to the WLAN positioning system location estimation.
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