Accession Number : ADA019510

Title :   Non-Uniqueness 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 non-radiating 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 non-radiating 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