Comparison of Subspace Identification Methods for Systems Operating in Closed Loop
2005 (English)In: Proceedings of the 16th IFAC World Congress, 2005, 82-82 p.Conference paper (Refereed)
In this paper, we analyze two recently proposed closed-loop subspace identification methods, referred to as innovation estimation method and whitening filter approach respectively. The similarity and difference between them are investigated in detail. It turns out that all closed-loop subspace identification methods can be classified as one-step, two-step, or multi-stage projection methods. A SISO closed-loop simulation shows that to identify a consistent model the whitening filter approach might require longer future and past horizons than the innovation estimation method.
Place, publisher, year, edition, pages
2005. 82-82 p.
Closed-loop identification, Subspace algorithms
Engineering and Technology Control Engineering
IdentifiersURN: urn:nbn:se:liu:diva-89180DOI: 10.3182/20050703-6-CZ-1902.00083ISBN: 978-3-902661-75-3OAI: oai:DiVA.org:liu-89180DiVA: diva2:612669
16th IFAC World Congress, Prague, Czech Republic, July, 2005