A Comparison of Error Estimators for Method of Moments

摘要

Local error estimators are investigated for use withnumerical solutions of the electric field integral equation. Threedimensionaltest targets include a sphere, disk, NASA almond, anda Lockheed Martin Expedite aircraft model. Visual plots andcorrelation coefficients are used to assess the accuracy of theestimators. It is shown that the inexpensive discontinuity estimatorsare usually as accurate as the residual method.