D.R. Wilton

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current distribution is windowed, and the level of the edge singu-larity is reduced by this process, the computed RCS shows a much better agreement over the entire region. It should be noted that the values of the RCS at grazing angles to the plate are weak, and are on the order of Ϫ25 dB, as compared to the backscattering RCS. Hence, an accurate prediction(More)
Efficient numerical procedures for evaluating the gradient of Helmholtz-type potentials are presented. The convergence behavior of both normal and tangential components of the gradient is examined. Special attention is given to cases in which the observation point is near an edge of the source element, and methods for handling these cases are presented.
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