Research Article
Feature Extraction of Ship Radiation Signals Based on Wavelet Packet Decomposition and Energy Entropy
Table 3
The recognition rates of PE for four types of SRS.
| ā | SRS1 (%) | SRS2 (%) | SRS3 (%) | SRS4 (%) | Average (%) |
| FB1 | 20 | 80 | 42 | 46 | 47 | FB2 | 30 | 20 | 38 | 36 | 31 | FB3 | 56 | 64 | 22 | 32 | 43.5 | FB4 | 26 | 46 | 38 | 34 | 36 | FB5 | 34 | 32 | 64 | 40 | 42.5 | FB6 | 38 | 42 | 60 | 68 | 52 | FB7 | 32 | 86 | 42 | 36 | 49 | FB8 | 24 | 60 | 20 | 34 | 34.5 |
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