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Basis transform in linear switched system models from input–output data

Bencherki, Fethi LU ; Türkay, Semiha and Akçay, Hüseyin (2023) In International Journal of Adaptive Control and Signal Processing
Abstract
This article addresses the problem of basis correction in the context of linear switched-system (LSS) identification from input–output data. It is often the case that identification algorithms for the LSSs from input–output data operate locally. The local submodel estimates, identified individually by subspace algorithms from the input-output data, reside in different-state bases, which mandates performing a basis correction that facilitates their coherent patching for the ultimate goal of performing output predictions for arbitrary inputs and switching sequences. We formulate a persistence of excitation condition for the inputs and the switching sequences that guarantees the presented approach’s success. These conditions are mild in... (More)
This article addresses the problem of basis correction in the context of linear switched-system (LSS) identification from input–output data. It is often the case that identification algorithms for the LSSs from input–output data operate locally. The local submodel estimates, identified individually by subspace algorithms from the input-output data, reside in different-state bases, which mandates performing a basis correction that facilitates their coherent patching for the ultimate goal of performing output predictions for arbitrary inputs and switching sequences. We formulate a persistence of excitation condition for the inputs and the switching sequences that guarantees the presented approach’s success. These conditions are mild in nature,which proves the practicality of the devised algorithm. We supplement the theoretical findings with an elaborating numerical simulation example. (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Adaptive Control and Signal Processing
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85171580374
ISSN
0890-6327
DOI
10.1002/acs.3677
language
English
LU publication?
yes
id
f84ea6b4-fa9c-438c-95c4-b3e3502ee8ff
date added to LUP
2023-09-23 14:48:50
date last changed
2024-01-03 10:37:13
@article{f84ea6b4-fa9c-438c-95c4-b3e3502ee8ff,
  abstract     = {{This article addresses the problem of basis correction in the context of linear switched-system (LSS) identification from input–output data. It is often the case that identification algorithms for the LSSs from input–output data operate locally. The local submodel estimates, identified individually by subspace algorithms from the input-output data, reside in different-state bases, which mandates performing a basis correction that facilitates their coherent patching for the ultimate goal of performing output predictions for arbitrary inputs and switching sequences. We formulate a persistence of excitation condition for the inputs and the switching sequences that guarantees the presented approach’s success. These conditions are mild in nature,which proves the practicality of the devised algorithm. We supplement the theoretical findings with an elaborating numerical simulation example.}},
  author       = {{Bencherki, Fethi and Türkay, Semiha and Akçay, Hüseyin}},
  issn         = {{0890-6327}},
  language     = {{eng}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{International Journal of Adaptive Control and Signal Processing}},
  title        = {{Basis transform in linear switched system models from input–output data}},
  url          = {{http://dx.doi.org/10.1002/acs.3677}},
  doi          = {{10.1002/acs.3677}},
  year         = {{2023}},
}