Research Article
Denoising Method Based on Sparse Representation for WFT Signal
Table 1
of test signals with 5 dB SNR by different wavelet.
| Wavelet | Frequency (Hz) | 50 | 55 | 60 | 65 | 70 |
| db2 | 1.4931 | 1.5620 | 1.5549 | 1.5129 | 1.4843 | db4 | 1.1897 | 1.2464 | 1.2392 | 1.1830 | 1.1897 | db6 | 1.0958 | 1.1454 | 1.1058 | 1.0634 | 1.0950 | db8 | 1.0840 | 1.1089 | 1.0548 | 1.0112 | 1.0716 | db10 | 1.0375 | 1.0904 | 1.0633 | 0.9943 | 1.0374 | sym2 | 1.4931 | 1.5620 | 1.5549 | 1.5129 | 1.4843 | sym4 | 1.1938 | 1.2521 | 1.2455 | 1.1881 | 1.1904 | sym6 | 1.0991 | 1.1534 | 1.1357 | 1.0785 | 1.1159 | sym8 | 1.0558 | 1.0788 | 1.0553 | 1.0394 | 1.1072 | sym10 | 1.0229 | 1.0896 | 1.0634 | 1.0364 | 1.1336 | coif2 | 1.2084 | 1.2639 | 1.2353 | 1.1895 | 1.2048 | coif3 | 1.1405 | 1.2096 | 1.1836 | 1.1142 | 1.1283 | coif4 | 1.1243 | 1.1508 | 1.1498 | 1.1009 | 1.1614 | coif5 | 1.1372 | 1.1499 | 1.0808 | 1.0635 | 1.1697 |
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