发明名称 |
Apparatus and method to distinguish nominally identical objects through wave fingerprints apparatus and method to distinguish nominally identical objects through wave fingerprints |
摘要 |
The present invention exploits extreme sensitivity to initial conditions in ray-chaotic enclosures to create a method to distinguish nominally identical objects through their unique "wave fingerprints." The fingerprint can be measured through transmission of a pulsed microwave signal as a function of carrier frequency and time. When internal components are re-arranged, the Electromagnetic Fingerprints (EMF) changes in significant ways. The EMF can be detected by direct injection measurements of the enclosure or through remote measurement. |
申请公布号 |
US8624605(B2) |
申请公布日期 |
2014.01.07 |
申请号 |
US20080070204 |
申请日期 |
2008.02.15 |
申请人 |
HEMMADY SAMEER;ANLAGE STEVEN M.;UNIVERSITY OF MARYLAND, COLLEGE PARK |
发明人 |
HEMMADY SAMEER;ANLAGE STEVEN M. |
分类号 |
G01R27/04;G01R27/32 |
主分类号 |
G01R27/04 |
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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