NDLI: Combining the Higher Order Method of Moments With Geometric Modeling by NURBS Surfaces

Content Provider	IEEE Xplore Digital Library
Author	Haobo Yuan Nan Wang Changhong Liang
Copyright Year	1963
Abstract	This paper introduces the nonuniform rational B-spline (NURBS) surfaces to improve the geometric modeling of the higher order method of moments (MoM). The electric field integral equation (EFIE) is discretized by the hierarchical higher order basis functions and converted to a matrix equation. Then the elements of the impedance matrix are efficiently evaluated by a new set of formulas. The bistatic radar cross sections (RCS) obtained by this new technique are compared with those obtained by the commonly used higher order MoM. The example of a cylinder and a missile shows excellent accuracy of the NURBS surfaces and that of the resultant RCS. Moreover, this new technique can fully exploit the flexibility of the higher order basis functions when the surface is highly curved, whereas the commonly used higher order MoM can not.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	3558
Ending Page	3563
Page Count	6
File Size	769891
File Format	PDF
ISSN	0018926X
Volume Number	57
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Moment methods Solid modeling Spline Surface topography Surface reconstruction Integral equations Matrix converters Surface impedance Bistatic radar Missiles radar cross sections (RCS) Geometric modeling impedance matrix method of moments (MoM)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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