Observer for Nonlinear Systems Using Approximate Observer Form

근사 관측기 형태를 이용한 비선형 시스템의 관측기

  • 이성렬 (연세대학교 전기·컴퓨터공학과) ;
  • 신현석 (연세대학교 전기·컴퓨터공학과) ;
  • 박민용 (연세대학교 전기·컴퓨터공학과)
  • Published : 2000.10.01


This paper presents an observer for nonlinear systems using approximate observer form. It is shown that if a nonlinear system is approximately error linearizable, then there exists a local nonlinear observer whose estimation error converges exponentially to zero. Since the proposed method relaxes strong geometric conditions of previous works, it improves the existing results for a nonlinear observer design. Finally, some examples are given to show the effectiveness of this scheme.