Observed Accuracy of Point-Tested and Galerkin Implementations of the Volume EFIE for Dielectric Targets
关键词:
Dielectric targets, method of moments, numerical techniques, radar cross section摘要
Galerkin testing in method-of-moments procedures is defined as the use of the same set of functions as both basis functions and testing functions to construct a linear system from a continuous equation. There is a widespread belief that Galerkin testing enhances the accuracy of numerical results, and this has been shown to be true under certain conditions for surface integral equation formulations. This property is investigated for the volume electric field integral equation (EFIE) applied to dielectric bodies. The relative accuracy obtained in internal fields and scattering cross section for Galerkin and for point testing schemes is compared for a variety of target sizes and materials. In many cases, the point-tested results converge at the same rate as the Galerkin results and are more accurate.
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参考
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