Table 3 The frequency band of each wavelet packet node
From: A wavelet selection scheme in underwater discharge signal analysis
Node | Frequency(Hz) | Node | Frequency(Hz) |
|---|---|---|---|
1 | 0–3125 | 9 | 25,000–28,125 |
2 | 3125–6250 | 10 | 28,125–31,250 |
3 | 6250–9375 | 11 | 31,250–34,375 |
4 | 9375–12,500 | 12 | 34,375–37,500 |
5 | 12,500–15625 | 13 | 37,500–40,625 |
6 | 15,625–18,750 | 14 | 40,625–43,750 |
7 | 18,750–21,875 | 15 | 43,750–46,875 |
8 | 21,875–25,000 | 16 | 46,875–50,000 |