Title :
Optimal a priori clipping estimation for wavelet-based method of moments matrices
Author :
Andriulli, Francesco P. ; Vecchi, Giuseppe ; Vipiana, Francesca ; Pirinoli, Paola ; Tabacco, Anita
Author_Institution :
Dept. of Electron., Politecnico di Torino, Italy
Abstract :
Wavelet bases are mainly used in the methods of moments (MoM) to render the system matrix sparse; clipping entries below a given threshold is an essential operation to obtain the desired sparse matrix. In this paper, we present a novel a priori way to estimate the clipping threshold that can be used if one wants an error on the solution below a desired accuracy. The procedure has a very low computational complexity, typically of O(N).
Keywords :
antenna theory; integral equations; method of moments; sparse matrices; wavelet transforms; MoM; a priori clipping estimation; integral equation; sparse matrix; wavelet based method of moments; Computational complexity; Computational efficiency; Costs; Equations; H infinity control; Linear systems; Mathematics; Moment methods; Sparse matrices; Integral equations; methods of moments (MoM); wavelets;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.858855
