Error assessment for plane wave scattering from conducting objects

This paper provides a power-based approach to assess the error in numerical solutions of electromagnetic scattering problems. Error arises from different approximations used to simplify the problem such as inaccurate geometrical modeling. Assessment of this error is useful to gain confidence in the numerical results for complex problems where no analytical solutions exist. The proposed method is independent of the adopted numerical technique, so it can be used to compare different techniques from error perspective. As an example, the proposed method is applied to the MoM solution of plane wave scattering from a two-dimensional conducting object using the electric field integral equation (EFIE) and the magnetic field integral equation (MFIE). The results for two types of basis functions, pulses and triangles, are compared.