A priori clipping threshold estimation for wavelet-based method of moments matrices

Author

Andriulli, F. ; Vecchi, G. ; Vipiana, F. ; Pirinoli, P.

Author_Institution

CERCOM, Politecnico di Torino, Italy

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1475

Abstract

The method of moments transforms the antenna problem into a linear system. Wavelets are mainly used in MoM to render the system matrix sparse; clipping entries below a given threshold is an essential operation to obtain the desired sparse matrix. We present a novel way to estimate a priori the clipping threshold that produces an error on the solution lower than a desired error known as input. The procedure has a very low computational complexity, O(n). It is tested on a matrix obtained by applying the wavelet-based method of moments to a microstrip patch array structure.

Keywords

antenna theory; computational complexity; impedance matrix; method of moments; microstrip antenna arrays; parameter estimation; sparse matrices; wavelet transforms; MoM; a priori clipping threshold estimation; computational complexity; impedance matrix; method of moments matrices; microstrip array; microstrip patch array; sparse matrix; wavelet; Artificial intelligence; Computational complexity; Computational efficiency; Costs; Impedance; Linear systems; Message-oriented middleware; Moment methods; Sparse matrices; Wavelet domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330467

Filename

1330467