제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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System indentification using multiple decimation method and design of PID-ATC

  • Byun, Hwang-Woo (Control Lab. Department of Electrical Engineering, Kon-Kuk Univ.) ;
  • Moon, Joon-Ho (Control Lab. Department of Electrical Engineering, Kon-Kuk Univ.) ;
  • Lee, In-Hee (Control Lab. Department of Electrical Engineering, Kon-Kuk Univ.) ;
  • Lee, Un-Cheol (Control Lab. Department of Electrical Engineering, Kon-Kuk Univ.) ;
  • Kim, Lark-Kyo (Control Lab. Department of Electrical Engineering, Kon-Kuk Univ.) ;
  • Nam, Moon-Hyon (Control Lab. Department of Electrical Engineering, Kon-Kuk Univ.)
  • Published : 1994.10.01
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Abstract

LSM(Least-Squares Method) has inherent limitation that precise system identification over wide frequency band is difficult especially at low frequency hand. In this paper we propose to use decimation, a spectrum analysis method widely used in signal processing. The merits of decimation are the flexibility of selection of the frequency hand concerned and the function of LPF(Low Pass Filter). In this paper, frequency-domain is divided into separate frequency bands which will be combined into full frequency-domain by using MDM(Multiple Decimation Method). In this way, free selection of sampling frequency for each hand is possible and the low frequency oscillation modes of LSM are avoided.

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