发明名称 |
Estimating the Location of a Wireless Terminal Based on Signal Path Impairment |
摘要 |
A technique for estimating the location of a wireless terminal at an unknown location in a geographic region is disclosed. The technique is based on the recognition that there are traits of electromagnetic signals that are dependent on topography, the receiver, the location of the transmitter, and other factors. For example, if a particular radio station is known to be received strongly at a first location and weakly at a second location, and a given wireless terminal at an unknown location is receiving the radio station weakly, it is more likely that the wireless terminal is at the second location than at the first location. |
申请公布号 |
US2012289249(A1) |
申请公布日期 |
2012.11.15 |
申请号 |
US201213551957 |
申请日期 |
2012.07.18 |
申请人 |
BHATTACHARYA TARUN KUMAR;FEUERSTEIN MARTIN;GORDON SCOT DOUGLAS;SPAIN, JR. DAVID STEVENSON;POLARIS WIRELESS, INC. |
发明人 |
BHATTACHARYA TARUN KUMAR;FEUERSTEIN MARTIN;GORDON SCOT DOUGLAS;SPAIN, JR. DAVID STEVENSON |
分类号 |
H04W24/00;G01S5/02;H04W4/02;H04W64/00 |
主分类号 |
H04W24/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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