Research Article
Hybrid Filtered-x Adaptive Vibration Control with Internal Feedback and Online Identification
Table 2
Control effect comparison on several control algorithms.
| | | Middle acceleration or residual error (dB) | Vibration attenuation (dB) | Active control force (dB) | | Passive | Fxlms | FFxlms | FOFxlms | Fxlms | FFxlms | FOFxlms | Fxlms | FFxlms | FOFxlms |
| | Fundamental frequency | 5.48 | -9.51 | -11.02 | -17.91 | 14.99 | 16.50 | 23.39 | 25.52 | 25.81 | 25.96 | | Double frequency | -16.78 | -7.12 | -7.00 | -12.78 | -9.66 | -9.78 | -4.00 | 20.61 | 20.45 | 20.75 | | Triple frequency | -20.91 | -13.38 | -13.39 | -19.13 | -7.53 | -7.52 | -1.78 | 13.10 | 13.15 | 13.34 |
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