Research Article
Improved Permutation Entropy for Measuring Complexity of Time Series under Noisy Condition
Table 3
Classification accuracy of three types of ships by PNN.
| | | 0dB | 5dB | 10dB | Original |
| | IPE | 69.33% | 100% | 100% | 100% |
| | PE | 40.67% | 65.33% | 100% | 100% |
| | WPE | 53.33% | 100% | 100% | 100% |
| | AAPE | 48.67% | 66.67% | 100% | 100% |
| | mPE | 40% | 65.33% | 100% | 100% |
| | IAUQ | 52.67% | 100% | 100% | 100% |
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