TY - JOUR
T1 - Stable Solution of Time Domain Integral Equation Methods Using Quadratic B-Spline Temporal Basis Functions
AU - M. Y. Xia, G. H. Zhang, G. L. Dai & C. H. Chan
JO - Journal of Computational Mathematics
VL - 3
SP - 374
EP - 384
PY - 2007
DA - 2007/06
SN - 25
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jcm/8698.html
KW - TDIE methods, B-spline temporal basis functions, Transient scattering problems.
AB - <p style="text-align: justify;">This paper is concerned with stable solutions of time domain integral equation (TDIE) methods for transient scattering problems with 3D conducting objects. We use the quadratic B-spline function as temporal basis functions, which permits both the induced currents and induced charges to be properly approximated in terms of completeness. Because the B-spline function has the least support width among all polynomial basis functions of the same order, the resulting system matrices seem to be the sparsest. The TDIE formulations using induced electric polarizations as unknown function are adopted and justified. Numerical results demonstrate that the proposed approach is accurate and efficient, and no late-time instability is observed.</p>