Wireless location system
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United States of America Patent
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Mar 30, 1999
Grant Date -
N/A
app pub date -
Oct 3, 1996
filing date -
Oct 3, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The position of a Wireless Transceiver (WT) is estimated using the Time Of Arrival (TOA) at several Monitoring Sites (MS) of the signal transmitted by the WT. Several sites are used to solve for the coordinates of the WT using hyperbolic trilateration. A time reference is used to synchronize the Monitoring Sites (MS). Super-Resolution (SR) techniques are applied to increase the resolution of the TOA estimate obtained via correlation of the received signal at each MS. SR techniques can improve the TOA resolution substantially.
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