Small Displacement Detection of Biological Signals Using the Cyclic Frequency Method

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijap/volume-2015/842123/figures/842123.fig.003a.svgz" name="842123.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Spectrogram</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijap/volume-2015/842123/figures/842123.fig.003b.svgz" name="842123.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Cyclic Frequency</td></tr></table>

<div>The proposed data processing method with a displacement period of 1 s.</div>

International Journal of Antennas and Propagation

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Figure 3

Figure 3: Small Displacement Detection of Biological Signals Using the Cyclic Frequency Method 