Method and system for position determination using geostationary earth orbit satellite
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United States of America Patent
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Feb 4, 2003
Grant Date -
N/A
app pub date -
Nov 25, 1998
filing date -
Sep 1, 1998
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Abstract
A system (20) and method (30) for estimating the location of a terrestrial-based user terminal (23) is provided. The user terminal (23) is capable of measuring the relative signal strengths of a plurality of spot beams pilot signal emitted from a geostationary satellite (22). The user terminal (23) then estimates its position based on the measured relative signal strengths. Using this approach, the user terminal (23) can quickly determine its location without prior knowledge of its position or delay time.
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