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. 2021 Aug 24;21(17):5693. doi: 10.3390/s21175693

Figure 20.

Figure 20

The effect of FEM. (a) The detection result of the experiment setting of NO CBAM and NO FEM. (b) The detection result of the experiment setting of YES CBAM and NO FEM. (c) The detection result of the experiment setting of NO CBAM and YES FEM. (d) The detection result of the experiment setting of YES CBAM and YES FEM. The blue rectangles indicate detected ships. The orange rectangles indicate the false alarms.