A Robust Passive Intrusion Detection System with Commodity WiFi Devices

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/js/volume-2018/8243905/figures/8243905.fig.005a.svgz" name="8243905.fig.005a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Static environment</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/js/volume-2018/8243905/figures/8243905.fig.005b.svgz" name="8243905.fig.005b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Dynamic environment</td></tr></table>

<div>A sample phase difference of 470 packets in two different situations.</div>

Journal of Sensors

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Figure 5

Figure 5: A Robust Passive Intrusion Detection System with Commodity WiFi Devices 