Algorithm Used to Detect Weak Signals Covered by Noise in PIND

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijae/volume-2019/1637953/figures/1637953.fig.006a.svgz" name="1637953.fig.006a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>The time and frequency spectrum of particle signal</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijae/volume-2019/1637953/figures/1637953.fig.006b.svgz" name="1637953.fig.006b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The time spectrum and frequency of particle signal with noise</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijae/volume-2019/1637953/figures/1637953.fig.006c.svgz" name="1637953.fig.006c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>The time and frequency spectrum of system output</td></tr></table>

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International Journal of Aerospace Engineering

Algorithm Used to Detect Weak Signals Covered by Noise in PIND

Figure 6