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