METHOD AND APPARATUS FOR USING MULTIPATH SIGNAL IN GPS ARCHITECTURE
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Jan 24, 2008
filing date -
Jan 24, 2007
priority date (Note) -
Abandoned
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Abstract
A method and apparatus for constructive use of a multipath signal in GPS signal processing is provided. In one embodiment, the method includes: a) receiving a GPS signal at a mobile object from a satellite vehicle, b) determining a distance characteristic relating a reflecting object to the mobile object, c) determining at least one inertial characteristic associated with the mobile object, d) predicting at least one multipath signal characteristic associated with reflection of the GPS signal by the reflecting object toward the mobile object, and e) determining the GPS signal received in a) includes a multipath signal associated with reflection of the GPS signal by the reflecting object toward the mobile object. In one embodiment, the apparatus includes: a GPS receiver, a storage device, an inertial measurement device, and a controller. In another embodiment, the apparatus also includes a distance measurement device.
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