High-Order Locally Corrected Nystrom Solution with Mixed-Order Basis Functions for Electromagnetic Scattering
Abstract
A high-order locally-corrected Nystrom (LCN) solution of a hybrid volume/surface integral equation is presented for the electromagnetic scattering by complex targets that consist of composite homogeneous and inhomogeneous materials and conducting objects. It is found that for general scattering objects, the use of mixed-order basis functions accelerates the convergence of the LCN solution, eliminates spurious charges, and significantly reduce the condition number of the resulting linear system of equations. Fast iterative solvers based on a multi-level fast multipole method (MLFMM) and the quadrature sampled pre-corrected FET (QSPCFFT) are also employed to enable the practical solution of large complex targets.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 23, 2004
- Accession Number
- ADA438187
Entities
People
- Aiming Zhu
- Caicheng Lu
- Stephen D. Gedney
Organizations
- University of Kentucky