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电子与信息学报 1991
VECTOR WAVE FUNCTION EXPANSION FOR ELECTROMAGNETIC SCATTERING BY BURIED OBJECTS
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Abstract:
An analysis of solving the electromagnetic scattering by buried objects using the vector vvave function expansion is presented. For expanding the boundary conditions both on the planar air-earth interface and on he spherical surface, the conversion relations be-tween the cylindrical and spherical vector wave functions are derived. Hence the vector wave function expansion is conveniently applied to solve this complex boundary value problem. For the excitation of the incident plane wave and the dipole above the earth, the scattering patterns of the buried conducting and dielectric sphcres are presented and discussed.