Radar Signal Emitter Recognition Based on Combined Ensemble Empirical Mode Decomposition and the Generalized S-Transform

<figure class="figure-group responsive"><div class="sub-figure" id="a"><object data="https://static.hindawi.com/articles/mpe/volume-2019/2739173/figures/2739173.fig.009a.svgz" name="2739173.fig.009a" type="image/svg+xml"></object><div class="fig-label">(a) EEMD-GST time-frequency transform diagram under -12 dB</div></div><div class="sub-figure" id="b"><object data="https://static.hindawi.com/articles/mpe/volume-2019/2739173/figures/2739173.fig.009b.svgz" name="2739173.fig.009b" type="image/svg+xml"></object><div class="fig-label">(b) ST time-frequency transform diagram under -12 dB</div></div><div class="sub-figure" id="c"><object data="https://static.hindawi.com/articles/mpe/volume-2019/2739173/figures/2739173.fig.009c.svgz" name="2739173.fig.009c" type="image/svg+xml"></object><div class="fig-label">(c) STFT time-frequency transform diagram under -12 dB</div></div></figure>

<p>Time-frequency analysis results obtained by (a) EEMD-GST, (b) ST, and (c) STFT under an SNR of −12 dB.</p>

Mathematical Problems in Engineering

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Figure 9

Figure 9: Radar Signal Emitter Recognition Based on Combined Ensemble Empirical Mode Decomposition and the Generalized S-Transform 