Results 11 to 20 of about 1,454,703 (289)
A joint impulse response function for vector autoregressive models
Empirical Economics, 2020 AbstractMany applications call for measuring the response due to shocks from several variables at once. We introduce a joint impulse response function (jIRF) that is independent of the order of the variables and allows for simultaneous shocks from multiple variables in the VAR, rather than one at a time as in the generalized IRF.
Thomas F. P. Wiesen, Paul M. Beaumont
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NeuroImage, 2008 Functional magnetic resonance imaging (fMRI) has emerged during the last decade as the main non-invasive technique for the investigation of human brain function. More recently, fMRI was also proposed for functional studies of the human spinal cord, but with controversial results.
Giovanni Giulietti +5 more
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An Impulse Response Function for Evaluation of UWB SAR Imaging
IEEE 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 Thuy Vu +3 more
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A Temporal White Noise Analysis for Extracting the Impulse Response Function of the Human Electroretinogram. [PDF]
Transl Vis Sci Technol, 2017 Purpose We introduce a method for determining the impulse response function (IRF) of the ERG derived from responses to temporal white noise (TWN) stimuli.
Zele AJ +8 more
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Real-time distortion correction of spiral and echo planar images using the gradient system impulse response function. [PDF]
Magn Reson Med, 2016 MRI‐guided interventions demand high frame rate imaging, making fast imaging techniques such as spiral imaging and echo planar imaging (EPI) appealing. In this study, we implemented a real‐time distortion correction framework to enable the use of these ...
Campbell-Washburn AE +4 more
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, 2021 Vector Error Correction Model is a cointegrated VAR model. This idea of Vector Error Correction Model (VECM), which consists of a VAR model of the order p - 1 on the differences of the variables, and an error-correction term derived from the known ...
S. Winarno +4 more
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Magnetic Resonance in Medicine, 2020 UTE sequences typically acquire data during the ramping up of the gradient fields, which makes UTE imaging prone to eddy current and system delay effects.
S. Kronthaler +6 more
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Nonlinear impulse response functions [PDF]
Journal of Economic Dynamics and Control, 1999 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Volatility Transmissions in Precious Metals Using Volatility Impulse Response Function Approach [PDF]
مدلسازی اقتصادسنجی, 2017 In this paper, we investigate volatility transmition between four precious metal (gold, silver, platinum, palladium) using a multivariate GARCH model. We also investigate effect of shocks on precious metals using volatility impulse response function. The
naser khiabani, mohamadreza abdolahi
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Asymmetric volatility impulse response functions
Economics Letters, 2023 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hafner, Christian M., Herwartz, Helmut
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