Compressive Sensing for Fast Analysis of Wide-Angle Monostatic Scattering Problems

The method of moments (MOM) is used in conjugation with the compressive sensing (CS) to efficiently analyze the electromagnetic scattering problems over a wide incident angle. A new incident source is formed based on CS theory, in which much information from different incident angle is included. By solving the integral equations under this new incident source, one can obtain the measurements of the induced currents without calculating the problems with a finer angle increment. Finally, the orthogonal matching pursuit technique (OMP) is used to recover the real induced currents. Numerical simulations for differently shaped objects are presented to validate the effectiveness of the proposed method.