
Accession Number : AD0665401
Title : SCATTERING BY PENETRABLE SPHEROIDS.
Descriptive Note : Technical rept.,
Corporate Author : SYLVANIA ELECTRONIC SYSTEMSWEST MOUNTAIN VIEW CALIF ELECTRONIC DEFENSE LABS
Personal Author(s) : Burke,James E.
Report Date : FEB 1968
Pagination or Media Count : 24
Abstract : The exact spheroidalfunction series solution for the scattering of a plane wave by a penetrable spheroid is used to obtain explicit lowfrequency (longwavelength) approximations in ascending powers of k = 2 pi/lambda where lambda is the wavelength. The farfield scattering amplitude is given to the sixth power of k, and the fields near and inside the spheroid are given to the second and first power, respectively. The results are valid for prolate and oblate spheroids and arbitrary angles of incidence and observation. (Author)
Descriptors : (*ACOUSTIC SIGNALS, SCATTERING), ELLIPSOIDS, NUMERICAL ANALYSIS, APPROXIMATION(MATHEMATICS), PERIODIC VARIATIONS, SPECIAL FUNCTIONS(MATHEMATICAL)
Subject Categories : Acoustics
Distribution Statement : APPROVED FOR PUBLIC RELEASE