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Adaptive control for linear slowly time-varying systems using direct least-squares estimation

Authors
  • Dimogianopoulos, D.
  • Lozano, R.
Type
Published Article
Journal
Automatica
Publisher
Elsevier
Publication Date
Jan 01, 2001
Accepted Date
Jun 23, 2000
Volume
37
Issue
2
Pages
251–256
Identifiers
DOI: 10.1016/S0005-1098(00)00159-X
Source
Elsevier
Keywords
License
Unknown

Abstract

In this paper, we propose a least-squares-based non-recursive identification algorithm capable of dealing with slowly time-varying parameters. The minimized criterion is an L 2 norm of the identification error with forgetting factor. The proposed estimation algorithm does not require explicit knowledge on the noise bound or the region where the true parameters lie. Finally, a pole placement hybrid controller is designed and the system's state is shown to be bounded.

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