Sökning: onr:"swepub:oai:DiVA.org:kth-247493" >
Nonlinear FIR Ident...
Nonlinear FIR Identification with Model Order Reduction Steiglitz-McBride⁎
-
- Ferizbegovic, Mina (författare)
- KTH,Reglerteknik
-
- Galrinho, Miguel (författare)
- KTH,Reglerteknik
-
- Hjalmarsson, Håkan, 1962- (författare)
- KTH,Reglerteknik
-
(creator_code:org_t)
- Elsevier B.V. 2018
- 2018
- Engelska.
-
Ingår i: IFAC-PapersOnLine. - : Elsevier B.V.. - 2405-8963. ; 51:15, s. 646-651
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- In system identification, many structures and approaches have been proposed to deal with systems with non-linear behavior. When applicable, the prediction error method, analogously to the linear case, requires minimizing a cost function that is non-convex in general. The issue with non-convexity is more problematic for non-linear models, not only due to the increased complexity of the model, but also because methods to provide consistent initialization points may not be available for many model structures. In this paper, we consider a non-linear rational finite impulse response model. We observe how the prediction error method requires minimizing a non-convex cost function, and propose a three-step least-squares algorithm as an alternative procedure. This procedure is an extension of the Model Order Reduction Steiglitz-McBride method, which is asymptotically efficient in open loop for linear models. We perform a simulation study to illustrate the applicability and performance of the method, which suggests that it is asymptotically efficient.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
Nyckelord
- least-squares identification
- non-linear
- System identification
- Cost functions
- Identification (control systems)
- Impulse response
- Model structures
- Religious buildings
- Asymptotically efficient
- Finite impulse response model
- Least squares algorithm
- Least squares identification
- Non linear
- Nonconvex cost functions
- Prediction error method
- Steiglitz-Mcbride method
- Least squares approximations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas