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Recursive nonlinear-system identification using latent variables

delete2018-07-01
delete24
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OA
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P
Per Mattsson *
D
Dave Zachariah
P
Petre Stoica
DOI:10.1016/j.automatica.2018.03.007delete
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Abstract

Abstract

En 中文
In this paper we develop a method for learning nonlinear system models with multiple outputs and inputs. We begin by modeling the errors of a nominal predictor of the system using a latent variable framework. Then using the maximum likelihood principle we derive a criterion for learning the model. The resulting optimization problem is tackled using a majorization-minimization approach. Finally, we develop a convex majorization technique and show that it enables a recursive identification method. The method learns parsimonious predictive models and is tested on both synthetic and real nonlinear systems. (C) 2018 Elsevier Ltd. All rights reserved.
Keywords:
Nonlinear systems
Multi-input/multi-output systems
System identification
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Journal

Automatica cover
Automatica
IF:
5.9
Papers:
1.2W
Citations:
5.2W

Organization

U
uppsala university
Scholars:
3.7W
Papers: 3.4W
Citations: 47