| 摘要 |
Systems and methods for detecting one or more changes in a monitored environment are provided. A method includes transmitting interrogation signals to sensors distributed in a monitored environment at a substantially constant power. A first set of the interrogation signals is transmitted to a first sensor. The method also includes receiving first response signals from the first sensor in response to the first set of interrogation signals transmitted to the first sensor. The method also includes determining an average parameter of the first response signals from the first sensor. The method also includes comparing the average parameter of the first response signals to an average parameter of baseline signals corresponding to the first sensor. The method also includes determining a statistical significance of the average parameter of the first response signals based on the comparison, and generating a change detection indicator based on the statistical significance.
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