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Review of FD-TD numerical modeling of electromagnetic wave scattering and radar cross section

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2 Author(s)
Taflove, Allen ; Dept. of Electr. Eng. & Comput. Sci., Technol. Inst., Northwestern Univ., Evanston, IL, USA ; Umashankar, K.R.

Applications of the finite-difference time-domain (FD-TD) method for numerical modeling of electromagnetic wave interactions with structures are reviewed, concentrating on scattering and radar cross section (RCS). A number of two- and three-dimensional examples of FD-TD modeling of scattering and penetration are provided. The objects modeled range in nature from simple geometric shapes to extremely complex aerospace and biological systems. Rigorous analytical or experimental validations are provided for the canonical shapes, and it is shown that FD-TD predictive data for near fields and RCS are in excellent agreement with the benchmark data. It is concluded that, with continuing advances in FD-TD modeling theory for target features relevant to the RCS problem, and with continuing advances in vector and concurrent supercomputer technology, it is likely that FD-TD numerical modeling will occupy an important place in RCS technology in the 1990s and beyond

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Proceedings of the IEEE  (Volume:77 ,  Issue: 5 )