Continuous-time subspace system identification method
SCIE
SCOPUS
- Title
- Continuous-time subspace system identification method
- Authors
- Sung, SW; Lee, SY; Kwak, HJ; Lee, IB
- Date Issued
- 2001-06-27
- Publisher
- AMER CHEMICAL SOC
- Abstract
- We analyze practical problems of discrete-time subspace system identification methods from the control point of view and develop a new continuous-time subspace system identification method. We use a new transform to obtain the derivative information numerically from the measured process output and the process input. Using the transform, we convert the continuous-time process model composed of differential equations into corresponding algebraic equations. We estimate the process order by inspecting singular values, and subsequently, we determine the continuous-time state space model using the least-squares method. We compare the proposed method with the discrete-time subspace system identification method for a small sampling period.
- Keywords
- TRANSFER-FUNCTION MATRIX; RECURSIVE-IDENTIFICATION; ALGORITHMS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19503
- DOI
- 10.1021/IE000069F
- ISSN
- 0888-5885
- Article Type
- Article
- Citation
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 40, no. 13, page. 2886 - 2896, 2001-06-27
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