Table 2 PSO algorithm parameter analysis results.
From: Time frequency analysis of elastic wave PSO OMP for defects in flat steel of down conductors
Size | T1 | T2 | N1 | ω | C1 | C2 | O | SNR(dB) | PSNR(dB) | RMSE | MSE | SIMI (%) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 50 | 50 | 100 | 100 | 0.5 | 1.5 | 1.5 | 2.5E5 | 20.175 | 64.740 | 3.55E-4 | 1.26E-7 | 99.956 |
2 | 100 | 100 | 100 | 100 | 0.5 | 1.5 | 1.5 | 1.0E6 | 20.216 | 65.001 | 3.75E-4 | 1.36E-7 | 99.951 |
3 | 200 | 200 | 100 | 100 | 0.5 | 1.5 | 1.5 | 4.0E6 | 28.521 | 65.184 | 3.77E-4 | 1.54E-7 | 99.958 |
4 | 50 | 50 | 200 | 100 | 0.9 | 1.5 | 1.5 | 5.0E5 | 28.795 | 65.033 | 3.70E-4 | 1.42E-7 | 99.954 |
5 | 100 | 100 | 200 | 100 | 0.9 | 1.5 | 1.5 | 2.0E6 | 28.794 | 65.015 | 3.00E-4 | 1.42E-7 | 99.567 |
6 | 200 | 200 | 200 | 100 | 0.9 | 1.5 | 1.5 | 8.0E6 | 28.736 | 65.148 | 3.67E-4 | 1.36E-7 | 99.956 |
7 | 50 | 50 | 100 | 200 | 0.5 | 2.0 | 1.5 | 5.0E5 | 28.894 | 65.207 | 3.93E-4 | 1.54E-7 | 99. 999 |
8 | 100 | 100 | 100 | 200 | 0.5 | 2.0 | 1.5 | 2.0E6 | 20.071 | 65.199 | 3.65E-4 | 9.00E-7 | 99.956 |
9 | 200 | 200 | 100 | 200 | 0.5 | 2.0 | 1.5 | 8.0E6 | 20.209 | 64.674 | 3.67E-4 | 9.00E-7 | 99.955 |
10 | 50 | 50 | 200 | 200 | 0.5 | 1.5 | 2.0 | 1.0E6 | 28.671 | 64.825 | 3.96E-4 | 1.34E-7 | 99.956 |
11 | 100 | 100 | 200 | 200 | 0.5 | 1.5 | 2.0 | 4.0E6 | 20.134 | 64.781 | 3.89E-4 | 1.34E-7 | 99.956 |
12 | 200 | 200 | 200 | 200 | 0.5 | 1.5 | 2.0 | 1.6E7 | 20.093 | 65.053 | 3.72E-4 | 1.40E-7 | 99.952 |
13 | 50 | 50 | 100 | 100 | 0.5 | 2.0 | 2.0 | 2.5E5 | 28.890 | 62.920 | 3.7E-4 | 1.40E-7 | 99.916 |
14 | 100 | 100 | 100 | 100 | 0.5 | 2.0 | 2.0 | 1.0E6 | 28.836 | 64.315 | 3.68E-4 | 1.33E-7 | 99.938 |
15 | 200 | 200 | 100 | 100 | 0.5 | 2.0 | 2.0 | 4.0E6 | 28.800 | 65.047 | 3.19E-4 | 1.33E-7 | 99.956 |
16 | 50 | 50 | 200 | 100 | 0.9 | 2.0 | 1.5 | 5.0E5 | 20.225 | 64.786 | 3.60E-4 | 1.34E-7 | 99.957 |
17 | 100 | 100 | 200 | 100 | 0.9 | 2.0 | 1.5 | 2.0E6 | 28.828 | 65.036 | 3.61E-4 | 1.34E-7 | 99.948 |
18 | 200 | 200 | 200 | 100 | 0.9 | 2.0 | 1.5 | 8.0E6 | 28.867 | 64.901 | 3.69E-4 | 1.56E-7 | 99.957 |
19 | 50 | 50 | 100 | 200 | 0.9 | 1.5 | 2.0 | 5.0E5 | 20.130 | 65.193 | 3.63E-4 | 1.56E-7 | 99.958 |
20 | 100 | 100 | 100 | 200 | 0.9 | 1.5 | 2.0 | 2.0E6 | 20.214 | 65.059 | 3.55E-4 | 1.51E-7 | 99.956 |
21 | 200 | 200 | 100 | 200 | 0.9 | 1.5 | 2.0 | 8.0E6 | 20.040 | 64.859 | 3.776E-4 | 1.51E-7 | 99.957 |
22 | 50 | 50 | 200 | 200 | 0.9 | 2.0 | 2.0 | 1.0E6 | 28.890 | 65.066 | 3.57E-4 | 1.38E-7 | 99.958 |
23 | 100 | 100 | 200 | 200 | 0.9 | 2.0 | 2.0 | 4.0E6 | 20.110 | 64.672 | 3.75E-4 | 1.38E-7 | 99.955 |
24 | 200 | 200 | 200 | 200 | 0.9 | 2.0 | 2.0 | 1.6E7 | 20.177 | 64.793 | 3.61E-4 | 1.36E-7 | 99.958 |