Table 1 S-transform results of signals at different start and end times.

From: Fault location of cable hybrid transmission lines based on energy attenuation characteristics of traveling waves

Time window

Frequency

Start point

End point

20 kHz

50 kHz

80 kHz

31,842

33,842

43.5444

8.90061

1.269766

31,802

33,802

43.5444

8.90061

1.269766

31,782

33,782

43.5444

8.90061

1.269766

31,722

33,722

–

8.89214

1.269766

31,702

33,702

–

8.58569

1.269766

31,682

33,682

–

5.82425

1.268488

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