Pregled bibliografske jedinice broj: 3469
Comparison of Several Recursive Identification Methods
Comparison of Several Recursive Identification Methods // Proceedings of KoREMA "96 41st Annual Conference / Vukić, Zoran (ur.).
Opatija, Hrvatska: Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA), 1996. str. Vol.2, 105-109 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 3469 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Comparison of Several Recursive Identification Methods
Autori
Branica, Ivan ; Perić, Nedjeljko ; Petrović, Ivan
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of KoREMA "96 41st Annual Conference
/ Vukić, Zoran - : Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA), 1996, Vol.2, 105-109
Skup
KoREMA
Mjesto i datum
Opatija, Hrvatska, 18.09.1996. - 20.09.1996
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
identification; least squares method; instrumental variable method; factorization
Sažetak
In this paper connection between theoretical achievements in the field of recursive identification and practical, applied methods is established. Such an approach should help control engineers in choosing adequate algorithm for an application in industry. Basic definitions introduce notation used. Least squares (LS) and instrumental variable (IV) techniques are described. Several choices for instruments in IV method are given. Recursive identification scheme is presented. Often used Biermann-Thornton factorization algorithm is suited for use with instrumental variable methods. Method for estimation of the DC offset is presented. These methods were ported into C code for testing in simulations and experiments on lab processes. Also, overdetermined instrumental variable method was coded. Simulations included tests with noise introduced in measured signals and tests with parameter change. Overdetermined IV (ORIV) method showed best results in simulation tests. Experiments were performed on physical processes: lab blower process and lab pump plant were recursively identified. Main problem encountered in experiments was DC offset, which had to be removed. The extended LS (ELS) method which includes DC estimation was superior in this case. After DC removal all the other recursive identification methods showed acceptable results.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
