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Experiment design f...
Experiment design for improved frequency domain subspace system identification of continuous-time systems
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- Khorsand Vakilzadeh, Majid, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yaghoubi Nasrabadi, Vahid, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- McKelvey, Tomas, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Abrahamsson, Thomas, 1956 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ljung, Lennart (författare)
- Linköpings universitet,Linköping University
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: IFAC-PapersOnLine. - : Elsevier BV. - 2405-8963. ; 48:28, s. 886-891
- Relaterad länk:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- A widely used approach for identification of linear, time-invariant, MIMO (multi-input/multi output) systems from continuous-time frequency response data is to solve it in discrete-time domain using subspace based identification algorithm incorporated with a bilinear transformation. However, the bilinear transformation maps the distribution of the frequency lines from continuous-time domain to discrete-time domain in a non-linear fashion which may make identification algorithm to be ill-conditioned. In this paper we propose a solution to get around this problem by designing a dedicated frequency sampling strategy. Promising results are obtained when the algorithm is applied to synthetic data from a 6DOF mass-spring model.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Nyckelord
- Frequency responses
- System identification
- Subspace methods
- Frequency sampling strategy
- Bias reduction
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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