Wireless positioning approach using time delay estimates of multipath components
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United States of America Patent
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Apr 14, 2009
Grant Date -
Dec 22, 2005
app pub date -
Jun 8, 2005
filing date -
Jun 9, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wireless positioning apparatus includes a multipath delay estimator configured to estimate multipath delay components from one or more received signals; a selector configured to select appropriate delay estimates from the estimated multipath delay components according to a predetermined criterion; a storage configured to store an NLOS delay function defining prior statistics of information about non-line-of-sight delays; and a position estimator configured to estimate a position of a mobile station based on the selected delay estimates and the NLOS delay function read out from the storage.
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