## Abstract

A Hybrid Partitioned Frequency/Time domain adaptive filtering algorithm for vibration shock control is proposed. Due to the complexity of the electrodynamic shaker transfer function, the FIR based model of this transfer function requires thousands of filter weights. The Hybrid Partitioned Frequency/Time domain approach for computing the shaker model and inverse controller model is proposed, such that when this controller is cascaded with the shaker/specimen system, the output of the controlled system tracks the reference signal. The control system algorithm uses both frequency domain and time domain adaptive filtering methods. The model of the shaker system was computed using the partitioned block frequency domain adaptive FIR algorithm where the weights are partitioned in a non-overlapped fashion. The control algorithm is designed to implement the filtered-x algorithm in the time domain. The simulation and practical results indicate the effectiveness of this combined time and frequency algorithm.

Original language | English |
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Title of host publication | Proceedings of the IASTED International Conference on Circuits, Signals, and Systems |

Pages | 29-34 |

Number of pages | 6 |

Publication status | Published - 2004 |

Event | Proceedings of the IASTED International Conference on Circuits, Signals, and Systems - Clearwater Beach, FL, United States Duration: 28 Nov 2004 → 1 Dec 2004 |

### Conference

Conference | Proceedings of the IASTED International Conference on Circuits, Signals, and Systems |
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Country | United States |

City | Clearwater Beach, FL |

Period | 28/11/04 → 1/12/04 |

## Keywords

- Adaptive filtering
- Electrodynamic shaker
- Filtered-x
- FIR model
- Hybrid
- Inverse adaptive control