
Accession Number : ADA019510
Title : NonUniqueness in the Inverse Source Problem in Acoustics and Electromagnetics.
Descriptive Note : Technical rept.,
Corporate Author : DENVER RESEARCH INST COLO DIV OF MATHEMATICAL SCIENCES
Personal Author(s) : Bleistein,Norman ; Cohen,Jack K.
Report Date : NOV 1975
Pagination or Media Count : 36
Abstract : It is shown that there exist physically realizable acoustic and electromagnetic sources for which the radiated field is exactly zero. Alternative analytical characterizations of these nonradiating sources are presented. Recently developed formulations of the inverse problem in acoustics and electromagnetics are introduced. The source is given as a solution of a Fredholm integral equation of the first kind. It is shown that the null space for this integral equation in each case is the class of nonradiating sources.
Descriptors : *Acoustic fields, *Electromagnetic fields, Wave equations, Integral equations, Maxwells equations, Theorems
Subject Categories : Numerical Mathematics
Acoustics
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE