### Abstract

Based on the implicit observer techniques, a new expression of the state is obtained by the first order filters of the input, output and disturbance. For the minimum phase dynamical systems with arbitrary relative degrees (with respect to the relation between disturbance-output), the higher order filters of the disturbance is estimated by using the VSS equivalent control method. Then, by some new techniques, the lower order filter of the disturbance is estimated. Eventually, the disturbance is also estimated. Thus, the state vector is asymptotically expressed by the first order filters of the input and output and the estimate of the first order filters of the disturbance. The estimated state and the disturbance are applied to a controller to place a desired pole and to cancel the disturbance. Examples and simulation results are presented to show the effectiveness of the proposed algorithms.

Original language | English |
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Title of host publication | IEEE International Workshop on Variable Structure Systems, VSS, Proceedings |

Editors | Anon |

Place of Publication | Piscataway, NJ, United States |

Publisher | IEEE |

Pages | 199-204 |

Number of pages | 6 |

Publication status | Published - 1996 |

Externally published | Yes |

Event | Proceedings of the 1996 IEEE International Workshop on Variable Structure Systems, VSS'96 - Tokyo, Jpn Duration: 1996 Dec 5 → 1996 Dec 6 |

### Other

Other | Proceedings of the 1996 IEEE International Workshop on Variable Structure Systems, VSS'96 |
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City | Tokyo, Jpn |

Period | 96/12/5 → 96/12/6 |

### Fingerprint

### ASJC Scopus subject areas

- Engineering(all)

### Cite this

*IEEE International Workshop on Variable Structure Systems, VSS, Proceedings*(pp. 199-204). Piscataway, NJ, United States: IEEE.

**State estimator and its application for systems with disturbances.** / Chen, Xinkai; Fukuda, Toshio; Hori, Takamasa.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*IEEE International Workshop on Variable Structure Systems, VSS, Proceedings.*IEEE, Piscataway, NJ, United States, pp. 199-204, Proceedings of the 1996 IEEE International Workshop on Variable Structure Systems, VSS'96, Tokyo, Jpn, 96/12/5.

}

TY - GEN

T1 - State estimator and its application for systems with disturbances

AU - Chen, Xinkai

AU - Fukuda, Toshio

AU - Hori, Takamasa

PY - 1996

Y1 - 1996

N2 - Based on the implicit observer techniques, a new expression of the state is obtained by the first order filters of the input, output and disturbance. For the minimum phase dynamical systems with arbitrary relative degrees (with respect to the relation between disturbance-output), the higher order filters of the disturbance is estimated by using the VSS equivalent control method. Then, by some new techniques, the lower order filter of the disturbance is estimated. Eventually, the disturbance is also estimated. Thus, the state vector is asymptotically expressed by the first order filters of the input and output and the estimate of the first order filters of the disturbance. The estimated state and the disturbance are applied to a controller to place a desired pole and to cancel the disturbance. Examples and simulation results are presented to show the effectiveness of the proposed algorithms.

AB - Based on the implicit observer techniques, a new expression of the state is obtained by the first order filters of the input, output and disturbance. For the minimum phase dynamical systems with arbitrary relative degrees (with respect to the relation between disturbance-output), the higher order filters of the disturbance is estimated by using the VSS equivalent control method. Then, by some new techniques, the lower order filter of the disturbance is estimated. Eventually, the disturbance is also estimated. Thus, the state vector is asymptotically expressed by the first order filters of the input and output and the estimate of the first order filters of the disturbance. The estimated state and the disturbance are applied to a controller to place a desired pole and to cancel the disturbance. Examples and simulation results are presented to show the effectiveness of the proposed algorithms.

UR - http://www.scopus.com/inward/record.url?scp=0030382530&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030382530&partnerID=8YFLogxK

M3 - Conference contribution

SP - 199

EP - 204

BT - IEEE International Workshop on Variable Structure Systems, VSS, Proceedings

A2 - Anon, null

PB - IEEE

CY - Piscataway, NJ, United States

ER -