Signal Processing Studies and Analysis. Volume V. Electromagnetic Short Pulse Inverse Scattering for Discontinuities in an Area Distribution (Scattering Centers).
Abstract
The Electromagnetic Inverse Scattering Problem is conventionally defined as the problem of determining the size and shape of a scatterer (and its electromagnetic properties), given the incident and scattered far-fields. With a short pulse radar, individual scattering centers are resolvable; hence, the problem of describing these scattering centers, given the incident and scattered fields from such resolvable centers, arises naturally. It is shown that the physical optics approximation to the electromagnetic short pulse (direct) monostatic scattering (from perfectly conducting surfaces) problem can be formulated in terms of 'returns' (or scattering) solely from scattering centers which are the magnitude of discontinuities in the area distribution (and its derivatives) of the scatterer. The inverse scattering problem for such individual scattering centers is solved, namely, a solution for the magnitude of the discontinuities in the area distribution (and its derivatives) in terms of the incident and scattered fields is obtained. This solution is obtained in both the frequency and the time domain. The relative merits of these solutions are discussed in detail. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1968
- Accession Number
- AD0845125
Entities
People
- Norbert N. Bojarski
Organizations
- SRC Inc.