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Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002
The paper discusses the definition of different functions such as spectral ratio, coherence and probability density and presents its comparison with experimental results in order to use them an a way of remote sensing the atmospheric parameters used in their definitions. >
G.L. Siqueira, R.S. Cole
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The paper discusses the definition of different functions such as spectral ratio, coherence and probability density and presents its comparison with experimental results in order to use them an a way of remote sensing the atmospheric parameters used in their definitions. >
G.L. Siqueira, R.S. Cole
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Probability density functions of acoustic modal amplitudes by polynomial chaos expansions
The Journal of the Acoustical Society of America, 2007Polynomial chaos (PC) expansions have recently been derived to model the statistical behavior of complex modal amplitudes in uncertain waveguides. Here we explore the statistical trajectories of complex modal amplitudes in phase space for one and two degrees freedom (DOF) of waveguide uncertainty.
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Proceedings of OCEANS '93, 1993
Simulations of the amplitude probability density function of the electromagnetic field backscattered from the ocean surface in the North Sea are compared with measurements at Ka, Ku and X-band taken during the SAXON FPN experiment. Good agreement is found at both 20/spl deg/ and 45/spl deg/ incidence after accounting for hydrodynamic modulation of the ...
D.R. Thompson, B.L. Gotwols
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Simulations of the amplitude probability density function of the electromagnetic field backscattered from the ocean surface in the North Sea are compared with measurements at Ka, Ku and X-band taken during the SAXON FPN experiment. Good agreement is found at both 20/spl deg/ and 45/spl deg/ incidence after accounting for hydrodynamic modulation of the ...
D.R. Thompson, B.L. Gotwols
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Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2002
Evolution of the amplitude probability density function (APDF) of EMG signals from neck muscles were studied in order to make an objective diagnostic of the benefit of using a head rest in a car. This method is simple: several APDFs over a long period of time are computed and observed.
T. Lamotte +4 more
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Evolution of the amplitude probability density function (APDF) of EMG signals from neck muscles were studied in order to make an objective diagnostic of the benefit of using a head rest in a car. This method is simple: several APDFs over a long period of time are computed and observed.
T. Lamotte +4 more
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Journal of Geophysical Research: Oceans, 1994
Data ranging from L to Ka band were collected from radars mounted on the Forschungsplatform Nordsee during the Synthetic Aperture Radar and X Band Ocean Nonlinearities experiment in November 1990. In this paper we examine, for each of these radars, the total amplitude probability density function (pdf) of the field backscattered from the ocean surface.
D. R. Thompson, B. L. Gotwols
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Data ranging from L to Ka band were collected from radars mounted on the Forschungsplatform Nordsee during the Synthetic Aperture Radar and X Band Ocean Nonlinearities experiment in November 1990. In this paper we examine, for each of these radars, the total amplitude probability density function (pdf) of the field backscattered from the ocean surface.
D. R. Thompson, B. L. Gotwols
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Advances in Structural Engineering, 2019
At the vicinity of vortex lock-in wind speed, the nonlinear aerodynamic damping effect of super-tall buildings is significant, which can greatly promote the surge of vortex-induced vibration in the crosswind direction, where the crosswind response characterized by harmonic amplitude shows narrow-band hardening non-Gaussian characteristic with the ...
Wei Hao, Qingshan Yang
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At the vicinity of vortex lock-in wind speed, the nonlinear aerodynamic damping effect of super-tall buildings is significant, which can greatly promote the surge of vortex-induced vibration in the crosswind direction, where the crosswind response characterized by harmonic amplitude shows narrow-band hardening non-Gaussian characteristic with the ...
Wei Hao, Qingshan Yang
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IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004
In remotely sensed data analysis, a crucial problem is represented by the need to develop accurate models for the statistics of the pixel intensities. This paper deals with the problem of parametric probability density function (PDF) estimation in the context of Synthetic Aperture Radar (SAR) amplitude data analysis.
MOSER, GABRIELE +2 more
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In remotely sensed data analysis, a crucial problem is represented by the need to develop accurate models for the statistics of the pixel intensities. This paper deals with the problem of parametric probability density function (PDF) estimation in the context of Synthetic Aperture Radar (SAR) amplitude data analysis.
MOSER, GABRIELE +2 more
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The Journal of the Acoustical Society of America, 2009
The polynomial chaos method is applied to the problem of predicting the probability density functions of complex modal amplitudes and acoustic pressure in the presence of water column sound speed fluctuations in shallow water waveguides. Results for both the intrusive implementation of the polynomial chaos technique, where the governing coupled mode ...
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The polynomial chaos method is applied to the problem of predicting the probability density functions of complex modal amplitudes and acoustic pressure in the presence of water column sound speed fluctuations in shallow water waveguides. Results for both the intrusive implementation of the polynomial chaos technique, where the governing coupled mode ...
openaire +1 more source