DocumentCode
801376
Title
Adaptive sampling for fast physical optics numerical integration
Author
Burkholder, Robert J. ; Lee, Teh-hong
Author_Institution
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Volume
53
Issue
5
fYear
2005
fDate
5/1/2005 12:00:00 AM
Firstpage
1843
Lastpage
1845
Abstract
It is shown that the numerical evaluation of the physical optics integral may be accelerated by an order of magnitude or more by adaptively varying the sampling density. The fast variation of the integrand is determined by the gradient of the phase, which in some regions may require far fewer points-per-wavelength than the standard Nyquist sampling rate.
Keywords
electromagnetic wave scattering; integration; physical optics; radar cross-sections; sampling methods; adaptive sampling density; electromagnetic scattering; numerical integration; oscillatory integrals; phase gradient; physical optics integral; radar cross sections; Acceleration; Electromagnetic scattering; Optical scattering; Optical surface waves; Physical optics; Radar antennas; Radar scattering; Reflector antennas; Sampling methods; Sea surface; Electromagnetic scattering; integration; oscillatory integrals; physical optics (PO); radar cross sections;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.2005.846813
Filename
1427947
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