Browsing by Keywords "Basis functions"
Now showing items 111 of 11

Algorithms and basis functions in tomographic reconstruction of ionospheric electron density
(2005)Computerized ionospheric tomography (CIT) is a method to investigate ionosphere electron density in two or three dimensions. This method provides a flexible tool for studying ionosphere. Earth based receivers record signals ... 
Empirical mode decomposition aided by adaptive low pass filtering
(2012)Empirical Mode Decomposition (EMD) is an adaptive signal analysis technique which derives its basis functions from the signal itself. EMD is realized through successive iterations of a sifting process requiring local mean ... 
Improving the accuracy of the MFIE with the choice of basis functions
(2004)The accuracy of the magneticfield integral equation (MFIE) for the Method of Moments (MOM) and fastmultiplemethod (FMM) solutions of the electromagnetic scattering problems modeled by abitrary planar triangulations is ... 
Integral equation based method for the fast analysis of irregularly contoured large finite phased arrays
(2007)A fast and accurate integral equation based hybrid method that can investigate electrically large, arbitrarily contoured finite planar arrays of printed elements is developed. The method is a hybridization of the Galerkin ... 
Investigation of the inaccuracy of the MFIE discretized with the RWG basis functions
(2004)The inaccuracy of the magneticfield integral equation (MFIE) discretized with the RaoWiltonGlisson (RWG) basis functions is discussed. The electricfield integral equation (EFIE) gives accurate results with the usage ... 
Linearlinear basis functions for MLFMA solutions of magneticfield and combinedfield integral equations
(Institute of Electrical and Electronics Engineers, 2007)We present the linearlinear (LL) basis functions to improve the accuracy of the magneticfield integral equation (MFIE) and the combinedfield integral equation (CFIE) for threedimensional electromagnetic scattering ... 
A modified equivalence principle for open surfaces
(Institute of Electrical and Electronics Engineers Inc., 2014)We introduce a new method for expanding equivalent surface current densities over open surfaces. The new method is based on the equivalence principle, which is theoretically used with closed surfaces. Utilizing loworder ... 
On the accuracy of MFIE and CFIE in the solution of large electromagnetic scattering problems
(2006)We present the linearlinear (LL) basis functions to improve the accuracy of the magneticfield integral equation (MFIE) and the combinedfield integral equation (CFIE) for threedimensional electromagnetic scattering ... 
Support adaptive HermiteGaussian expansion for analysis of multicomponent signals
(2011)For a signal component whose timefrequency support tightly fits into a circular region around origin, HermiteGaussian function expansion provides optimal representation by using the fewest number of basis functions. ... 
Timefrequency analysis of signals using support adaptive HermiteGaussian expansions
(Elsevier, 20120518)Since HermiteGaussian (HG) functions provide an orthonormal basis with the most compact timefrequency supports (TFSs), they are ideally suited for timefrequency component analysis of finite energy signals. For a signal ... 
Windowed equivalence principle for open surfaces
(2013)We introduce a modified current expansion scheme over open surfaces based on the equivalence theorem, which employs closed surfaces, in principle. Weighting the expansion coefficients with a suitable window function ...