An Approach to the Limited Aperture Problem of Physical Optics Farfield Inverse Scattering
Abstract
The limited aperture problem of physical inverse scattering is examined i.e., the problem of identifying a target from an analysis of band- limiting viewing apertures. The target may be completely identified from an analysis of high frequency, bandlimited data. If the directions of viewing angles are limited as well, it is shown that the target surface can be identified where the target normal lies within the range of viewing directions; outside of this range, no information is available. It is shown that this phenomenon is totally a feature of the Fourier transform of characteristic (one- zero) functions and independent of the inverse scattering formalism. Numerical examples are given for the case of a perfectly reflecting circular cylinder.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 25, 1976
- Accession Number
- ADA030786
Entities
People
- Norman Bleistein
- Robert D. Mager
Organizations
- Denver Research Institute