نتایج جستجو برای: scattering function

تعداد نتایج: 1314329  

2016
Kohei Arai

Methods for size distribution estimation and rainfall type discrimination with estimated phase function using measured reflected laser light by rain droplet are proposed. Preliminary experiments are conducted with Laser ranging instrument and spectral radiometer for estimation of size distribution and rainfall type discrimination as well as phase function of scattering by rain drops. Through th...

2016
David Landon

Parameterized data from ARTM channel sounding test flights are used to derive a parameter-based estimate of the scattering function. The Doppler bandwidth and Doppler spread, important measures of channel dynamics, can be estimated from such a scattering function. Data collected from ARTM Flight 11 suggest that the Doppler bandwidth is larger than 6.7 Hz. Even for very small collections of para...

2014
Onur Oktay Götz Pfander Pavel Zheltov

This paper addresses the problem of stochastic radar target measurement. We develop an algorithm that allows for the reconstruction of the scattering function of a WSSUS radar target from the autocorrelation of the response of the target to a deterministic sounding signal. While conventional methods are applicable only when the scattering function is supported on a rectangle with area less than...

امیری, سمیه, شجاعی, فریده, فتحی, رضا,

In the present work the first and second order scattering amplitudes and the related phase were calculated in the charge transfer channel. The positronium formation, with the impact of molecular hydrogen ion, has been carried out using multiple channel scattering formulation and transition matrix. The calculation of differential cross section has been done by varying the scattering angle from 0...

Journal: :The Journal of the Acoustical Society of America 2014
Kees Wapenaar Jan Thorbecke Joost van der Neut Filippo Broggini Evert Slob Roel Snieder

The methodology of Green's function retrieval by cross-correlation has led to many interesting applications for passive and controlled-source acoustic measurements. In all applications, a virtual source is created at the position of a receiver. Here a method is discussed for Green's function retrieval from controlled-source reflection data, which circumvents the requirement of having an actual ...

Journal: :پژوهش فیزیک ایران 0
ناصر کلانتر نیستانکی n. kalantar nayestanaki

0

2008
Wei Yan Min Yan

A type of simplified cloaks with matched exterior boundaries is proposed. The cloak uses nonmagnetic material for the TM polarization and can function with a relatively thin thickness. It is shown that the zero order scattering of such cloak is dominant among all cylindrical scattering terms. A gap is added at the cloak’s inner surface to eliminate the zero order scattering, through the mechani...

Journal: :Comput. Graph. Forum 2014
Marios Papas Krystle de Mesa Henrik Wann Jensen

This supplemental material provides additional figures and derivations that complement our paper. The main paper includes indicative examples from the full set of plots contained in this document. We present graphical plots that detail how each of the Paper BSDF’s components contribute to closely replicating our BSDF measurements for paper. We also offer comparison plots for Lambertian/Rough Gl...

2001
Naiqi Wu MengChu Zhou

This paper presents a colored resourceoriented Petri net (CROPN) modeling method to deal with conflict and deadlock arising in Automated Guided Vehicles (AGV) systems. The work can be viewed as the continuation of some of the authors’ previous work. Some unique features in AGV systems require the further investigation into their deadlock avoidance using CROPN models. The proposed approach can e...

2004
Man-Ho Kim

An analytical method to estimate the thickness of the interface between two phases from small-angle scattering (SAS) data has been developed using Porod's law modi®ed by a triangular smoothing function. The convolution with a `top-hat' function describing a sharp density pro®le results in a semi-sigmoidal density pro®le. This analytical method allows an interfacial layer thickness to be estimat...

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