SYSTEMS AND METHODS FOR ESTIMATING A TWO-DIMENSIONAL POSITION OF A RECEIVER
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United States of America Patent
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app pub date -
Oct 12, 2015
filing date -
Oct 29, 2014
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Abandoned
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Abstract
Estimating a two-dimensional position of a receiver based on an altitude of an object other than the receiver in a geographical region within which the receiver is believed to reside. In one embodiment, when a high-accuracy estimate of the receiver's altitude is available, latitude and longitude coordinates of the receiver are estimated using the high-accuracy estimate of the receiver's altitude. When the high-accuracy estimate of the receiver's altitude is not available, the latitude and longitude coordinates of the receiver are estimated using an alternative altitude value that is based on one or more altitudes of one or more things other than the receiver.
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