Results 31 to 40 of about 33,160 (233)

SUBSPACE IDENTIFICATION OF CLOSED LOOP SYSTEMS BY STOCHASTIC REALIZATION

open access: yesIFAC Proceedings Volumes, 2002
Abstract We develop a closed loop subspace identification method based on stochastic realization theory. Using the preliminary orthogonal decomposition of (Picci and Katayama, 1996b) we show that, under the assumption that the exogenous input is feedback-free and persistently exciting (PE), the identification of closed loop systems is divided into ...
KATAYAMA T., KAWAUCHI H., PICCI, GIORGIO
openaire   +1 more source

Online Modal Identification of Concrete Dams Using the Subspace Tracking-Based Method

open access: yesShock and Vibration, 2019
To investigate the time-varying dynamic characteristics of concrete dams under the excitation of large earthquakes for online structural health monitoring and damage evaluation, an online modal identification procedure based on strong-motion records is ...
Lin Cheng   +3 more
doaj   +1 more source

Real-time performance monitoring of tuned mass damper system for a 183 m reinforced concrete chimney [PDF]

open access: yes, 2010
A 183 m reinforced concrete chimney for a coal-fired power station was instrumented in the latter part of its life during the construction of a replacement chimney.
C.R. Goddard   +12 more
core   +1 more source

Synthetical Modal Parameters Identification Method of Damped Oscillation Signals in Power System

open access: yesApplied Sciences, 2022
It is vital to improve the stability of the power system by accurately identifying the modal parameters of damped low-frequency oscillations (DLFO) and controlling the oscillation in time.
Huan Li   +3 more
doaj   +1 more source

Stochastic Analysis of the LMS Algorithm for System Identification with Subspace Inputs [PDF]

open access: yes, 2008
This paper studies the behavior of the low rank LMS adaptive algorithm for the general case in which the input transformation may not capture the exact input subspace.
Bermudez, José Carlos Moreira   +2 more
core   +3 more sources

SSI improved algorithm based on zero phase filtering technology for structural parameter identification in civil engineering [PDF]

open access: yesArchives of Civil Engineering
Early damage detection and reinforcement of civil engineering structures are crucial. To ensure timely maintenance in the later stage, the civil structure is subjected to modal parameter identification.
Kai Yang, Zhenwu Wang
doaj   +1 more source

Automatic modal parameters identification and uncertainty quantification based on block-bootstrap and multi-stage clustering under ambient excitation

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
This study proposes an algorithm for autonomous modal estimation to automatically eliminate false modes and quantify the uncertainty caused by the clustering algorithm and ambient factors. This algorithm belongs to the stochastic subspace identification (
Yongpeng Luo   +3 more
doaj   +1 more source

Inverse problems and uncertainty quantification [PDF]

open access: yes, 2013
In a Bayesian setting, inverse problems and uncertainty quantification (UQ) - the propagation of uncertainty through a computational (forward) model - are strongly connected.
Litvinenko, Alexander   +1 more
core   +2 more sources

Automated Harmonic Signal Removal Technique Using Stochastic Subspace-Based Image Feature Extraction

open access: yesJournal of Imaging, 2020
This paper presents automated harmonic removal as a desirable solution to effectively identify and discard the harmonic influence over the output signal by neglecting any user-defined parameter at start-up and automatically reconstruct back to become a ...
Muhammad Danial Bin Abu Hasan   +3 more
doaj   +1 more source

Infinite dimensional parameter identification for stochastic parabolic systems [PDF]

open access: yes, 1988
The infinite dimensional parameter estimation for stochastic heat diffusion equations is considered using the method of sieves.
Aihara, ShinIchi, Bagchi, Arunabha
core   +3 more sources

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