发明名称 |
SYSTEM AND METHOD FOR MICROWAVE RANGING TO A TARGET IN PRESENCE OF CLUTTER AND MULTI-PATH EFFECTS |
摘要 |
A system for measuring the range to an RFID tag including situations containing high clutter and multi-path signals is disclosed. The system includes an RFID reader; an RFID tag; and a coordinated pulse radar system. In the system the RFID reader causes the tag to respond to received signals in a first backscatter state at a first time and a second backscatter state at a second time. The pulsed radar system transmits short pulses coordinated by the backscatter state of the RFID tag and the system creates a differential signal comprised of the differences between radar signals obtained during the first and second states of the tag to obtain an uncorrupted measure of a round trip time of flight of said radar pulses between the pulse radar system and the RFID tag. |
申请公布号 |
US2011260910(A1) |
申请公布日期 |
2011.10.27 |
申请号 |
US201113095296 |
申请日期 |
2011.04.27 |
申请人 |
TC LICENSE LTD. |
发明人 |
GRAVELLE KELLY;LANDT JEREMY;KAO JOSEPH H.;GONZALES MICHAEL P. |
分类号 |
G01S13/08 |
主分类号 |
G01S13/08 |
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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