Subspace like identification incorporating prior information

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F09%3A03148020" target="_blank" >RIV/68407700:21230/09:03148020 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Subspace like identification incorporating prior information

Original language description

The subspace identification methods can further benefit from the prior information incorporation algorithm proposed in this paper. In the industrial environment, there is often some knowledge about the identified system, which can be used to improve themodel quality and its compliance with first principles. The proposed algorithm has two stages. The first one is similar to the subspace methods as it uses their interpretation as an optimization problem of finding parameters of an optimal multi-step linear predictor for the experimental data. The second stage with state space model realization from the posterior impulse response estimate is different from the standard subspace methods as it is based on the SWLR (structured weighted lower rank) approximation, which is necessary to preserve the prior information incorporated in the first stage.

Czech name

Identificace s využitím apriorní informace

Czech description

Metody "subspace identification" mohou být dále vylepšeny zahrnutím apriorní informace. V průmyslových aplikacích je obvykle dostupná apriorní znalost, která může zlepšit kvalitu modeluu i jeho soulad s fyzikálními princopy. Navržený algoritmus má dva kroky: první krok je podobný metodám "subspace identification" formulovaným jako optimální vícekrokový prediktor. Ve druhém kroku se hledá stavová realizace na základě impulsní odezvy tak, aby se zachovalala apriorní informace z kroku 1, metodou SWLR (structured weighted lower rank) aproximace.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BC - Theory and management systems

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Automatica

ISSN

0005-1098

e-ISSN

—

Volume of the periodical

45

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

—

UT code for WoS article

000265155700030

EID of the result in the Scopus database

—