Subspace identification of closed loop systems by the orthogonal decomposition method
โ Scribed by Tohru Katayama; Hidetoshi Kawauchi; Giorgio Picci
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 319 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0005-1098
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
In this paper, a modified least-squares method is proposed to treat the problem of identifying closed-loop systems in the presence of coloured noises. Using the information obtained by the standard least-squares (LS) method, some linear equality constraints of the estimated parameters are derived fo
variable estimation are discussed.
## We convert the closed-loop identification of nonlinear time-varying plants, with high signal-to-noise ratio, to an open-loop identification problem of an associated Youla-Kucera parameter. The plant must be stabilizable by a known linear, possibly time-varying controller.
Several schemes for plant model identiรฟcation in closed-loop operation including classical direct method, two-step identiรฟcation and closed-loop output error algorithms are considered. These methods are analyzed and compared in terms of the bias distribution of the estimates for the case that the no