Abstract
Rapid calculation of electromagnetic scattering problems over a wide incident angle range is always a difficult subject in computational electromagnetics. Recently, as compressed sensing was introduced into method of moments, a fast algorithm for analyzing electromagnetic scattering characteristics illuminated by waves from multiple incident angles was proposed. This paper takes excitation matrix as prior knowledge and provides three accelerating techniques to the algorithm. The principle is described in detail, and numerical results are presented to show the efficiencies.
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