標題: A novel concept for finding proper orthogonal wavelets effectively to solve a large object scattering problem
作者: Chen, CM
Tarng, JH
Huang, JM
電信工程研究所
友訊交大聯合研發中心
Institute of Communications Engineering
D Link NCTU Joint Res Ctr
關鍵字: orthogonal wavelets;visible energy;sparsification
公開日期: 18-Apr-2003
摘要: [1] A novel concept of "visible energy" is proposed, and its magnitude is shown to be valuable information for determining whether the chosen orthogonal wavelet is proper in solving a large object scattering problem. With the properly chosen wavelets for the targeting problem the ( transformed) wavelet-domain impedance matrix can be sparsified effectively for solving electromagnetic integral problems. Visible energy is defined as the energy of all dilations of a single mother wavelet for an arbitrary translation in the spectral domain over the entire "visible region." It is found that for large matrix sizes, using wavelets with smaller visible energy will lead to a greater sparsification of the matrix. Numerical examples considering various scatterers with different shapes such as a circular cylinder, an L-shaped scatterer, and a duct show the validity of our findings.
URI: http://dx.doi.org/10.1029/2001RS002475
http://hdl.handle.net/11536/27955
ISSN: 0048-6604
DOI: 10.1029/2001RS002475
期刊: RADIO SCIENCE
Volume: 38
Issue: 2
結束頁: 
Appears in Collections:Articles


Files in This Item:

  1. 000182595800001.pdf