Fast broad-band angular response sweep using FEM in conjunction with compressed sensing technique

The Compressed Sensing (CS) technique is applied to the finite element method (FEM) for fast radar cross section (RCS) calculation over a wide incident angular band. Rather than point-by-point solving multiple right-hand vectors of each incident angle, the right-hand sides are first compressed and then recovered to find each incident angle response in CS procedure. The numerical example shows the proposed approach leads a magnitude decrease of computation time without losing accuracy.