Results 271 to 280 of about 980,468 (308)

Time Domain Analysis of Grounding Electrodes' Impulse Response

IEEE Power Engineering Review, 2002
Lightning protection studies require estimation of grounding systems' dynamic behavior. This paper presents the results of a new methodology for calculating the lightning response of the basic component of any grounding system, the grounding electrode. Lightning strike is modeled using a double exponential time function.
M.I. Lorentzou, N.D. Hatziargyriou, B.C. Papadias   +2 more
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Analysis of Impulse Response of Electrically Large Targets

2008 International Conference on Microwave and Millimeter Wave Technology, 2008
The impulse response of electrically large targets is studied using the numerical techniques based on frequency-domain (FD) integral equations. The time-domain (TD) results are obtained through the transformation from the original frequency-domain utilizing the inverse Fourier transform. With the multilevel fast multipole algorithm (MLFMA) acceleration,
X. W. Zhao, C. H. Liang, L. Liang
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Impulse response analysis and Orcutt’s hypothesis in trade

Empirica, 2014
How fast trade flows respond to exchange rate changes versus relative price changes has its own literature in international economics. Indeed, Orcutt (Rev Econ Stat 32:117–132, 1950) conjectures that they respond faster to exchange rate changes than to changes in relative prices.
Mohsen Bahmani-Oskooee, Esmaeil Ebadi
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Feynman diagram analysis of transducer impulse response

The Journal of the Acoustical Society of America, 1983
Transducer impulse response is analyzed by introducing two novel elements. First, the usual equivalent circuit of the transducer is replaced by a simple reentrant transmission line configuration. Second, a Feynman diagram method is applied which involves tracing the exciting signal through all possible pathways to the time and place of observation. The
A. H. Banah, A. Korpel, R. F. Vogel
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Analysis of the impulse response of a piezoelectric photoacoustic signal

Journal of Applied Physics, 1988
Impulse responses of the piezoelectric photoacoustic (PA) signal have been measured by using the technique of cross correlation. Experimental impulse responses of aluminum model samples are in good agreement with theoretical prediction. It is shown that thermal diffusivities of opaque materials can be determined by measured zero-crossing times of PA ...
M. Hangyo, S. Nakashima, Y. Oohara, S. Kimura   +3 more
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Some spatial analysis of the room impulse response

Journal of the Acoustical Society of America, 2015
The room impulse response (RIR) and measures derived from it have been a powerful tool for room characterization. Traditionally, these measures are based on time domain characteristics like reverberation time or clarity. By recoding a group of RIRs with microphone arrays, one can add the spatial dimension to the RIR.
Jens Meyer, Gary W. Elko
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The Sinc Interpolation in the Impulse Response Function Analysis

[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium, 2005
sin(x) The - (sinc) interpolation is commonly used in resampling SAR data centered around a point target to obtain the interpolated impulse response function to be analyzed. Detected SAR data are output from correlation processor in either amplitude or intensity format.
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Self-similar analysis of the room impulse response

The Journal of the Acoustical Society of America, 2006
Important information of the room acoustic characteristics is contained in the room impulse response. We analyze the time-space correlation of the impulse response by the self-similarity method. The room impulse response is divided into the frame of the length of the fixed time. Attractors are composed by affine transformation of each frame.
Yong Tang, Hideo Shibayam, Wakako Tanaka, Tooru Itakura   +3 more
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Impulse Response Analysis of Ocean Acoustic Propagation

1991
An intuitive picture of ocean sound channel propagation from point sources is developed in terms of impulse response. The entire wavefront is described for fixed times that are appropriate for propagation to ≈ 1000 km. The wavefront characteristic that allows determination of the source depth is shown to be the distance between the two distinct ...
Stanley M. Flatté, John Colosi, Timothy Duda, Galina Rovner   +3 more
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Diffuseness and intensity analysis of spatial impulse responses

The Journal of the Acoustical Society of America, 2008
Spatial impulse responses, meaning responses measured with a microphone grid, were measured in seven concert halls. The microphone array consisted of 12 omni-microphones, enabling a construction of three intensity pairs (in x, y, and z directions) with 1 cm spacing and three intensity pairs with 10 cm spacing.
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