Title
Indirect adaptive periodic control.
Abstract
A indirect adaptive control method is presented. The method is based on a lifted representation of the plant that can be stabilized using a simple performant periodic control scheme. The controller parameters computation involves the inverse of the controllability/observability matrix. Potential singularities of this matrix are avoided by means of an appropriate estimates modification. This estimates transformation is linked to the covariance matrix properties, and hence, it preserves the convergence properties of the original estimates. This modification involves the singular value decomposition of the controllability/observability matrix's estimate. As compared with previous studies on the subject, the controller proposed here does not require the frequent introduction of periodic n-length sequences of zero inputs. Therefore, the new controller is such that the system is almost always operating in closed loop, which should lead to better performance characteristics.
Year
DOI
Venue
1999
10.1109/9.811214
IEEE Transactions on Automatic Control
Keywords
DocType
Volume
Adaptive control,Covariance matrix,Convergence,Matrix decomposition,Controllability,Observability,Stability,Parameter estimation,Singular value decomposition,Control systems
Journal
44
Issue
ISSN
Citations 
12
Adaptive Control Systems
3
PageRank 
References 
Authors
0.53
5
3
Name
Order
Citations
PageRank
dimitrios dimogianopoulos1101.67
Rogelio Lozano2914166.62
Amit Ailon39115.23