Design of Unknown Input Observers for Linear Discrete-Time Systems

선형 이산 시스템에 대한 미지입력 관측기의 설계

  • 이재혁 (한국과학기술원 전기및전자공학과) ;
  • 변증남 (한국과학기술원 전기및전자공학과)
  • Published : 1993.07.18

Abstract

In this paper, a new design procedure is proposed for constructing the observer for linear discrete-time systems with unknown inputs. An existence condition for the suggested observer is also presented. The observer design procedure does not use any transformation technique, augmentation technique and has a clear physical meaning, so it is easy to understand and to design the observer. It directly estimates the unknown inputs from that outputs only, so it is different from other pre-works in which the reconstruction of the unknown inputs arc performed with the additional output derivatives.

Keywords