发明名称 |
Techniques for circumventing jamming of global positioning system receivers |
摘要 |
A method and apparatus for circumventing jamming of receivers for a global positioning system (GPS) include determining that a receiver is being jammed by a jamming signal not originating from the GPS. A first signal is transmitted from a portable unit including the receiver to a component of a second positioning system that is different from the GPS. A second signal is received from the second positioning system. The second signal includes data that indicates a position for the portable unit determined in the second positioning system based at least in part on the first signal.
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申请公布号 |
US7010262(B2) |
申请公布日期 |
2006.03.07 |
申请号 |
US20020216005 |
申请日期 |
2002.08.09 |
申请人 |
THE JOHNS HOPKINS UNIVERSITY |
发明人 |
TYSON SCOTT M. |
分类号 |
G01S19/04;H04K3/00;G01S1/00;G01S5/00;G01S5/02;G01S5/04;G01S5/14;G01S19/10;G01S19/44;G01S19/46 |
主分类号 |
G01S19/04 |
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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