Model reduction using a frequency-limited H2-cost
2014 (English)In: Systems & control letters (Print), ISSN 0167-6911, E-ISSN 1872-7956, Vol. 67, no 1, 32-39 p.Article in journal (Refereed) Published
We propose a method for model reduction on a given frequency range, without the use of input and output filter weights. The method uses a nonlinear optimization approach to minimize a frequency limited H2 like cost function. An important contribution of the paper is the derivation of the gradient of the proposed cost function. The fact that we have a closed form expression for the gradient and that considerations have been taken to make the gradient computationally efficient to compute enables us to efficiently use off-the-shelf optimization software to solve the optimization problem. © 2014 Elsevier B.V. All rights reserved.
Place, publisher, year, edition, pages
Elsevier , 2014. Vol. 67, no 1, 32-39 p.
H2-norm; Model reduction; Optimization
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-116389DOI: 10.1016/j.sysconle.2014.02.004ISI: 000335290600006ScopusID: 2-s2.0-84896801170OAI: oai:DiVA.org:liu-116389DiVA: diva2:798762