
Accession Number : ADA301237
Title : Physical Optics Inverse Diffraction,
Corporate Author : MITRE CORP BEDFORD MA
Personal Author(s) : Lewis, Robert M.
PDF Url : ADA301237
Report Date : 12 NOV 1967
Pagination or Media Count : 37
Abstract : A general method for solving the inverse diffraction problem is presented. It is based on an identity of Bojarski which states that gamma(x) and Gamma(p) are a Fourier transform pair. Here gamma(x) is the characteristic function of the target (gamma = 1 inside the target, gamma = 0 outside), p = (2 omega/c)J, omega is the frequency, J is a unit vector specifying the aspect, and Gamma(p) can be obtained by measurement of the backscattered electromagnetic far field at frequency omega = (c/2)
Descriptors : *TARGETING, *DIFFRACTION ANALYSIS, FOURIER TRANSFORMATION, ELECTROMAGNETIC FIELDS, OPTICS, BACKSCATTERING, FAR FIELD, FREQUENCY BANDS, GEOMETRY, INVERSION, CONICAL BODIES.
Subject Categories : Target Direction, Range and Position Finding
Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE