NDLI: Bias compensation-based parameter and state estimation for a class of time-delay non-linear state-space models

Content Provider	IET Digital Library
Author	Gu, Ya Zhu, Quanmin Nouri, Hassan
Abstract	This study presents, based on bias compensation, an integrated parameter and state estimation algorithm for a class of time-delay non-linear systems which are described by canonical observable state-space model. In technical development, the state-space system model is transformed into an input–output representation/realisation by eliminating the state variables, which is accordingly used as a feasible identification model. With such an input–output structure, directly data measurable to accommodate the estimation bias, an augmented least-squares algorithm (by adding the bias correction terms into the estimates) is proposed for estimating the parameters and states interactively. Regarding the estimator properties, the proposed algorithm is proved unbiased. The simulation results show that the proposed algorithm has good performance in estimating the parameters of state-space systems.
Starting Page	2176
Ending Page	2185
Page Count	10
ISSN	17518644
Volume Number	14
e-ISSN	17518652
Issue Number	Issue 15, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/14/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2020.0104
Journal	IET Control Theory & Applications
Publisher Date	2020-08-14
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bias Compensation Bias Correction Canonical Observable State-space Model Control System Analysis Delay Estimation Bias Estimator Property Feasible Identification Model Input–output Structure Integrated Parameter Least Squares Approximation Least-squares Algorithm Linear System Nonlinear Control System Observers Parameter Estimation State Estimation State Estimation Algorithm State Space Method State Variables State-Space System State-Space System Model Statistics Synthesis Method Time-delay Nonlinear State-Space Model Time-delay Nonlinear System
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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