IMPEDANCE MATRIX COMPRESSION (IMC) USING ITERATIVELY SELECTED WAVELETBASIS

In this paper, we present a novel approach for the incorporation of wa velets into the solution of frequency-domain integral equations arisin g in scattering problems. In this approach, we utilize the fact that w hen the basis functions used are wavelet-type functions, only a few te rms in a series expansion are needed to represent the unknown quantity , To determine these dominant expansion functions, an iterative proced ure is devised. The new approach combined with the iterative procedure yields a new algorithm that has many advantages over the presently us ed methods for incorporating wavelets, Numerical results which illustr ate the approach are presented for three scattering problems.