Resilient antenna disturbance detector
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United States of America Patent
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Sep 29, 2015
Grant Date -
Jun 19, 2014
app pub date -
Dec 13, 2012
filing date -
Dec 13, 2012
priority date (Note) -
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Abstract
A resilient antenna disturbance detector is provided. A signal generator generates an unclonable integrity test signal. The antenna reflects a signal in response to the integrity test signal. A comparator determines whether the reflected signal matches the integrity test signal and a controller signals the disturbance of the antenna to a monitoring device if the energy level of the reflected signal is greater than a predetermined threshold and the reflected signal matches the integrity test signal. The detector provides the advantage of preventing an external receiver and transmitter from predicting and transmitting the integrity test signal to the antenna to interfere with disturbance detection. Also provided is a security system with resilient antenna disturbance detection.
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