Research Article
A Nonlinear Adaptive Observer-Based Differential Evolution Algorithm to Multiparameter Fault Diagnosis
Table 3
The parameter estimation results with different SNR.
| Parameter | Fault value | SNR = 50 | SNR = 40 | SNR = 30 | SNR = 20 | SNR = 10 |
| | 0.3 | 0.300550 | 0.298721 | 0.290431 | 0.307865 | 0.275272 | | 0.3 | 0.301163 | 0.259900 | 0.295185 | 0.274000 | 0.303014 | | 0.5 | 0.491633 | 0.494183 | 0.495723 | 0.493756 | 0.428642 | | 0.6 | 0.602957 | 0.603952 | 0.594899 | 0.595272 | 0.616803 | | 1.0 | 0.996162 | 0.991430 | 0.998303 | 0.998101 | 0.995124 |
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