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research article

A pseudospectral method for time-domain computation of electromagnetic scattering by bodies of revolution

Yang, BL
•
Hesthaven, Jan S.  
1999
IEEE Transactions on Antennas and Propagation

We present a multidomain pseudospectral method for the accurate and efficient time-domain computation of scattering by body-of-revolution (BOR) perfectly electrically conducting objects. In-the BOR formulation of the Maxwell equations, the azimuthal dependence of the fields is accounted for analytically through a Fourier series. The numerical scheme in the (r, z) plane is developed in general curvilinear coordinates and: the method of characteristics is applied for patching field values in the individual subdomains to obtain the global solution. A modified matched-layer method is used for terminating the computational domain and special attention is given to proper treatment of the coordinate singularity in the scattered field formulation and correct time-domain boundary conditions along edges. Numerical results for monochromatic plane wave scattering by smooth and nonsmooth axis-symmetric objects, including spheres, cone-spheres, and finite cylinders, is compared with results from the literature, illustrating the accuracy and computational efficiency associated,vith the use of properly-constructed spectral methods. To emphasize the versatility of the presented framework, we compute plane wave scattering by a missile and find satisfactory agreement with method-of-moment (MoM) computations.

  • Details
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Type
research article
DOI
10.1109/8.753003
Web of Science ID

WOS:000079495500018

Author(s)
Yang, BL
Hesthaven, Jan S.  
Date Issued

1999

Published in
IEEE Transactions on Antennas and Propagation
Volume

47

Issue

1

Start page

132

End page

141

Subjects

bistatic radar cross section

•

body-of-revolution scattering

•

pseudospectral multidomain methods

•

time-domain scattering

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
MCSS  
Available on Infoscience
November 12, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/96966
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