科研之友
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摘要
In this article the multilevel UV algorithm is utilized to reduce both the memory requirement and CPU time in the time domain combined field integral equation (TD CFIE) method to analyze transient electromagnetic scattering from conducting structures The UV method is kernel independent and is based on the rank deficiency feature of the impedance submatrix which represents far interaction To obtain an unconditionally stable solution finite orders of weighted Laguerre polynomials are used as temporal basis functions and the unknown expansion coefficients of the time variable are solved recursively order by older as the so called matching on in order (MOO) procedure RWG basis function is used as the spatial basis function for its flexibility in modeling arbitrary geometries The spatial and temporal testing procedures are separate and both of them are carried on with the Galerkin s method Numer
