Transactions on Control, Automation and Systems Engineering

Institute of Control, Robotics and Systems (제어로봇시스템학회)
권호 표지

Unknown Inputs Observer Design Via Block Pulse Functions

  • Ahn, Pius (Office of Electric-electro Eng., Small Business Corporation)
  • Published : 2002.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

Unknown inputs observer(UIO) which is achieved by the coordinate transformation method has the differential of system outputs in the observer and the equation for unknown inputs estimation. Generally, the differential of system outputs in the observer can be eliminated by defining a new variable. But it brings about the partition of the observer into two subsystems and need of an additional differential of system outputs still remained to estimate the unknown inputs. Therefore, the block pulse function expansions and its differential operation which is a newly derived in this paper are presented to alleviate such problems from an algebraic form.

Keywords

References

  1. IEEE Trans. Automatic Control v.23 Observer design for linear systems with unknown inputs S. P. Bhattacharyya https://doi.org/10.1109/TAC.1978.1101758
  2. IEEE Trans. Automatic Control v.29 Disturbance decoupled observer design via singular value decomposition F. W. Fairman;S. S. Mahil;L. Luk https://doi.org/10.1109/TAC.1984.1103370
  3. IEEE Trans. Automatic Control v.33 Observers for linear systems with unknown inputs F. Yang;R. W. Wilde https://doi.org/10.1109/9.1278
  4. IEEE Trans. Automatic Control v.36 A novel approach to the design of unknown input observer Y. Guan;M. Saif https://doi.org/10.1109/9.76372
  5. IEEE Trans. Automatic Control v.37 Design of observers for linear systems with unknown inputs M. Hou;P. C. Muller https://doi.org/10.1109/9.256351
  6. IEEE Trans. Automatic Control v.39 Full-order observers for linear systems with unknown inputs M. Darouach;M. Zasadzinski;S. J. Xu https://doi.org/10.1109/9.280770
  7. Int. Journal of Control v.51 Identification with block-pulse functions, modulating functions and differential operator F. Kraus;W. Schaufelberger https://doi.org/10.1080/00207179008934106
  8. Block-pulse functions and their and their applications in control systems Z. H. Jiang;W. Schaufelberger
  9. Proc. of IFAC World Congress v.D A novel approach to unknown input observer design via block pulse function's differential operation P. Ahn;M. K. Kim;D. S. Ahn