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