Zobrazeno 1 - 10
of 56
pro vyhledávání: '"A.A. Zaporozhets"'
Publikováno v:
Thermophysics and Thermal Power Engineering. 42:5-18
It is known that deterministic and probabilistic models of measured quantities, processes and fields, as well as physical and probabilistic measures, make it possible to form a measurement result, to provide it with the properties of objectivity and
Autor:
A.A. Zaporozhets, A.D. Sverdlova
Publikováno v:
Техническая диагностика и неразрушающий контроль. 2017:33-41
Autor:
A.A Zaporozhets, M.F Levy
Publikováno v:
Wave Motion. 31:147-156
Parabolic equation techniques for scattering are outlined for both acoustic and electromagnetic waves. Angular limitations are overcome by rotating the paraxial direction and solving for scattered fields that are accurate in sectors centered about th
Autor:
M.F. Levy, A.A. Zaporozhets
Publikováno v:
IEEE Transactions on Antennas and Propagation. 47:1016-1024
An iterative solver is used to compute the electromagnetic field scattered by perfectly conducting three-dimensional (3-D) objects of arbitrary shape. The unique solution of the dual-surface integral equation is approached by successive forward/backw
Autor:
M.F. Levy, A.A. Zaporozhets
Publikováno v:
IEEE Transactions on Antennas and Propagation. 47:1688-1696
The vector parabolic equation (PE) method provides accurate solutions for electromagnetic scattering from three-dimensional (3-D) objects ranging from a size comparable to the wavelength of the incident wave to several tens of wavelengths. A paraxial
Autor:
M.F. Levy, A.A. Zaporozhets
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010).
Established techniques like the method of moments or FDTD for 3D electromagnetic scattering problems are often prohibitively expensive for objects which are more than a few wavelengths in size. By contrast, marching methods are far less computer-inte
Publikováno v:
IEEE Antennas and Propagation Society International Symposium 1997. Digest.
Parabolic equation (PE) techniques are based on a paraxial approximation of the wave equation. The resulting parabolic partial differential equation (for scalar problems) or coupled parabolic equations (for vector problems) are solved by marching tec
Autor:
A.A. Zaporozhets, M.F. Levy
Publikováno v:
IEE National Conference on Antennas and Propagation.
The current marching technique computes the electromagnetic field scattered by three-dimensional perfectly conducting objects. The size of the object can range from a fraction of a wavelength to tens of wavelengths. The field sources can be located f
Autor:
A.A. Zaporozhets
Publikováno v:
Tenth International Conference on Antennas and Propagation (ICAP).
The parabolic equation (PE) method is a fast and powerful technique which allows accurate modelling of radiowave diffraction and scattering from buildings, including detailed features like doors, windows, wall roughness, etc. It is important, particu
Autor:
A.A. Zaporozhets, B.S. Westcott
Publikováno v:
IEE Colloquium on Novel Techniques for Antenna Beam Control.