New Approach To The Estimation of matrices A and C in CVA-type subspace identification algorithms

• Type: Article in International Conference Proceedings Book
• Date: 2004

Authors

Catarina Delgado (Author) FEP; Paulo Lopes Dos Santos (Author) FEUP

Conference proceedings International

Title: CDIC 04, The 2004 International Conference on Dynamics, Instrumentation and Control

Pages: 69-78

Nanjing, China

18 a 20 de Agosto de 2004

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-000-C70

DOI: 10.1142/9789812702289_0008

Abstract (EN): In this paper, two approaches, for the estimation of matrices A and C in CV A-type subspace identification algorithms are compared and the differences between the two obtained estimates are analysed. One of the methods, "least squares" based, was proposed in the original CVA algorithm. The other method, inspired in the techniques of the classical Realization Theory and proposed by Verhaegen, is far more efficient. Therefore, although the two methods produce two different estimates, a replacement is proposed and an expression for correction of the estimates is obtained, in order to reduce the loss of accuracy.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10