대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)

대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
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생체 카오스의 최적 어트렉터 재구성에 관한 연구

A Study on Optimal Attractor Reconstruction of Biological Chaos

  • 장재호 (연세대학교 공과대학 전기공학과) ;
  • 이병채 (연세대학교 공과대학 전기공학과) ;
  • 이명호 (연세대학교 공과대학 전기공학과)
  • Jang, Jae-Ho (Dept. of Electrical Engineering, Yonsei University) ;
  • Lee, Byung-Chae (Dept. of Electrical Engineering, Yonsei University) ;
  • Lee, Myoung-Ho (Dept. of Electrical Engineering, Yonsei University)
  • 발행 : 1994.12.03
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초록

This paper proposes an fill-factor algorithm that determines embedding parameters which are needed in optimal attractor reconstruction. For reliability test, using this algorithm, we reconstructs the attractor of numerical chaotic data such as Duffing equation, Lorenz equation and Rossler equation whose embedding parameters are known. Also we reconstructs the attractor of experimental data and evaluates correlation dimension. Experimental data used in this paper are 38 ECG data of AHA(American Heart Association) ECG database. For numerical chaotic data, correlation dimension and Lyapunov exponent of reconstructed attractor are very close to those of attractor using original coordinate system.

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