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Spectrally accelerated biconjugate gradient stabilized method for scattering from and propagation over electrically large inhomogeneous geometries
Author(s) -
Babaoglu Baris,
Altintas Ayhan,
Ertürk Vakur B.
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20930
Subject(s) - biconjugate gradient stabilized method , biconjugate gradient method , discretization , scattering , microwave , computational physics , optics , materials science , mathematical analysis , physics , mathematics , computer science , linear system , conjugate residual method , gradient descent , quantum mechanics , machine learning , artificial neural network
Scattering from and propagation over rough‐terrain profiles, as well as reentrant surfaces are investigated using an integral equation (IE)‐based spectrally accelerated biconjugate gradient stabilized (SA‐BiCGSTAB) method, with a storage requirement and a computational cost of O(N) per iteration, where N is the surface unknowns in the discretized IE. Numerical results in the form of current and path loss are presented and compared with previously published as well as measured results in order to assess the accuracy and efficiency of this method. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 158–162, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20930

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