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A physically-based impulsive noise model for array observations
Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136), 2002Impulsive interference has been measured previously in some wireless communication environments. Physically-based impulsive interference models have been lacking for cases where the antenna elements in an array are closely spaced. Such cases are important when spatial processing is employed.
Rick S. Blum, K.F. McDonald
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On the physical properties of discharges in sand under lightning impulses
Journal of Electrostatics, 1993Abstract Experimental results of discharges in sand and air are presented. A coaxial cylindrical test cell was used. Three different types of sand grains were tested. No formation of large space charge in sand was detected before the breakdown.
M. Cabrera +3 more
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Physical optics impulse response from faceted targets
IEEE Antennas and Propagation Society International Symposium 1992 Digest, 1992In practical high-frequency RCS (radar cross section) computations, the most common method is to represent a complex target by thousands of triangular facets, and to calculate its frequency-domain scattering by the physical optics (PO) theory. The authors extend this method to the time domain, in which the incident plane wave is a pulse instead of a ...
C.S. Liang +4 more
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Algorithm for computing the physical descriptor of environmental impulsive sounds
The Journal of the Acoustical Society of America, 1995Some considerations and information are provided on the previously proposed algorithm for computing the physical descriptor (Lφ) of environmental impulsive sounds. This parameter can be directly measured by a microprocessor-based apparatus recently presented in this Journal [G. B. Cannelli and S. Santoboni, J. Acoust. Soc. Am.
Giovanni Bosco Cannelli, S. Santoboni
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From Room Impulse Responses to Wall Impulse Responses using Physics- Aware Deep Learning
2023The problem of estimating the reflectivity of surfaces in a room, i.e., the wall impulse responses, using a set of room impulse responses is studied. The geometry of the room and setup and the device responses are assumed approximately known. It is shown that a purely learning-based method trained on simulated data performs well on simple matched ...
Dilungana, Stéphane +3 more
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Impulse noise: Some definitions, physical acoustics and other considerations
The Journal of the Acoustical Society of America, 1991An overview of the impulse noise (blast wave) stimulus is presented with an emphasis on examining those parameters that have been traditionally used to quantify the stimulus for the purpose of understanding its effects on hearing.
Keng D. Hsueh, R. P. Hamernik
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Physical Characteristics of Gunfire Impulse Noise and its Attenuation by Hearing Protectors
International Journal of Audiology, 1995The peak sound pressure level (SPL), spreading of pressure wave and other physical characteristics of the impulse noise from weapons were studied in actual shooting conditions for assessment of gunfire noise exposure. Additionally, the attenuation of SPL by hearing protectors was measured with miniature microphones to evaluate protection efficiency in ...
Rauno J. Pääkkönen +4 more
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Dissociation and Physical Abuse as Predictors of Bulimic Symptomatology and Impulse Dysregulation
Eating Disorders, 1993Abstract The current study examined the relationship between physical abuse, dissociation, bulimic symptomatology, and impulse dysregulation. Subjects were 126 female and 57 male undergraduate and graduate psychology students. Child physical abuse, as measured by the Violence History Questionnaire, was reported by 32% of the sample, The results of this
Constance J. Dalenberg +2 more
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IEEE Transactions on Dielectrics and Electrical Insulation, 2016
The introduction of the test voltage function or k-factor in IEC 60060-1 Ed. 3 has been an important step to ensure reproducibility and traceability in high voltage tests techniques for lightning impulses with superposed oscillations and overshoots. The standard recommends computed fitting methods to extract a base curve from the oscillating recorded ...
R. Diaz, Adan A. Segovia
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The introduction of the test voltage function or k-factor in IEC 60060-1 Ed. 3 has been an important step to ensure reproducibility and traceability in high voltage tests techniques for lightning impulses with superposed oscillations and overshoots. The standard recommends computed fitting methods to extract a base curve from the oscillating recorded ...
R. Diaz, Adan A. Segovia
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Arm strength and impulse generation: Initiation of wheelchair movement by the physically disabled
Ergonomics, 1986The initiation of wheelchair movement is a function of starting technique, upper extremity strength and the stabilizing potential of the trunk musculature. This study examined the relation between arm strength, activity level, degree of disability and the maximum impulse generated from a resting position while seated in a wheelchair.
Glen M. Davis +3 more
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