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A model‐based angular extrapolation technique for iterative method‐of‐moments solvers
Author(s) -
Wang Yuanxun,
Ling Hao
Publication year - 1999
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/(sici)1098-2760(19990220)20:4<229::aid-mop3>3.0.co;2-l
Subject(s) - extrapolation , method of moments (probability theory) , iterative method , microwave , exponential function , mathematics , algorithm , physics , computer science , computational physics , mathematical analysis , telecommunications , statistics , estimator
An angular extrapolation technique is proposed to accelerate the multiangle RCS calculation of iterative MoM solvers. Based on high‐frequency electromagnetic phenomenology, an exponential model is proposed to parameterize the induced currents on the target. The model parameters are extracted from MoM results at a limited number of angular samples using the superresolution algorithm ESPRIT. The RCSs at a wide extent of angles are then extrapolated. This approach is tested on two numerical examples. Comparison with the bistatic approximation shows the improved accuracy of the algorithm. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 229–233, 1999.