Results 1 to 10 of about 62,188 (257)

Damage Index Analysis of Retaining Wall Structures Based on the Impulse Response Function and Virtual Impulse Response Function [PDF]

open access: yesShock and Vibration, 2021
To identify the damage within retaining wall structures, the Hilbert–Huang Transforms of the impulse response function and virtual impulse response function were performed.
Qian Xu
doaj   +2 more sources

Statistical Estimation and Hypothesis Testing on Impulse Response Function

open access: yesAustrian Journal of Statistics
In this paper a time-invariant continuous linear system is considered with a real-valued impulse response function (IRF) which is defined on a bounded domain. A sample input- output cross-correlogram is taken as an estimator of the response function.
Iryna Rozora, Anastasiia Melnyk
doaj   +2 more sources

Impulse response function analysis of pore pressures in earthdams

open access: yesEuropean Journal of Environmental and Civil Engineering, 2008
In this paper, an Impulse Response Function Analysis (IRFA) method for analysing dam monitoring data is presented. The model developed, which was based on the approximation of the impulse response of the dam, gives the variations in the pore-pressure measurements resulting from changes in the reservoir and tailwater levels. An expression for explicitly
Stéphane Bonelli
exaly   +6 more sources

An Impulse Response Function for Evaluation of UWB SAR Imaging

open access: yesIEEE Transactions on Signal Processing, 2010
Based on analysis of a point target imaged by different synthetic aperture radar (SAR) systems, the commonly used impulse response function in SAR Imaging (IRF-SAR)-a two-dimensional (2-D) sinc function-is shown to be inappropriate for ultrawideband-ultrawidebeam (UWB) SAR systems utilizing a large fractional signal bandwidth and a wide antenna ...
Viet T Vu   +2 more
exaly   +4 more sources

Research on improving measurement accuracy of acoustic transfer function of underwater vehicle [PDF]

open access: yesMATEC Web of Conferences, 2021
To address the problem that acoustic transfer functions with underwater platforms cannot be measured accurately, this paper presents a method based on phase compensation to improve the accuracy of acoustic transfer function measurements on underwater ...
Li Jiangqiao   +4 more
doaj   +1 more source

Impulse response function for Brownian motion [PDF]

open access: yesSoft Matter, 2021
Motivated from the central role of the mean-square displacement and its second time-derivative – that is the velocity autocorrelation function in the description of Brownian motion, we revisit the physical meaning of its first time-derivative.
openaire   +3 more sources

Impulse Response Function [PDF]

open access: yes, 2011
Impulse response functions are useful for studying the interactions between variables in a vector autoregressive model. They represent the reactions of the variables to shocks hitting the system. It is often not clear, however, which shocks are relevant for studying specific economic problems.
  +6 more sources

Algorithms for Fractional Dynamical Behaviors Modelling Using Non-Singular Rational Kernels

open access: yesAlgorithms, 2023
This paper proposes algorithms to model fractional (dynamical) behaviors using non-singular rational kernels whose interest is first demonstrated on a pure power law function.
Jocelyn Sabatier, Christophe Farges
doaj   +1 more source

Correlation impulse response functions

open access: yesFinance Research Letters, 2023
Volatility impulse response functions are a widely used tool for analyzing the temporal impact of shocks on (co-)volatilities of financial time series. This paper proposes an extension to correlation impulse response functions (CIRF), based on a multivariate GARCH modeling framework.
Christian M. Hafner, Helmut Herwartz
openaire   +3 more sources

Computational tools for inversion and uncertainty estimation in respirometry.

open access: yesPLoS ONE, 2021
In many physiological systems, real-time endogeneous and exogenous signals in living organisms provide critical information and interpretations of physiological functions; however, these signals or variables of interest are not directly accessible and ...
Taewon Cho   +2 more
doaj   +1 more source

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