Accession Number : ADA119258

Title :   Inverse Scattering Applications in Determining Terrain Feature Parameters.

Descriptive Note : Technical rept. Jan-Jun 80,

Corporate Author : ARMY ENGINEER TOPOGRAPHIC LABS FORT BELVOIR VA

Personal Author(s) : Hevenor,Richard A

PDF Url : ADA119258

Report Date : Dec 1981

Pagination or Media Count : 48

Abstract : In this report, the results are described of an initial in-house research effort to investigate inverse scattering methods to determine terrain feature parameters. The problem of inverse scattering from discrete objects was considered, but was found not to apply to terrain feature extraction. Profile inversion concepts were analyzed, but were found to be only slightly relevant. Two specific inverse problems were analyzed and solved. The first problem involved solving for the dielectric constant of a slightly rough surface using the radar backscatter coefficients for two orthogonal polarizations. The second problem consisted of determining the dielectric constant and the conductivity of a medium located beneath a forest or jungle canopy. In this case, the electrical properties were calculated for two different polarizations of the incident wave. (Author)

Descriptors :   *Inverse scattering, *Terrain models, Backscattering, Waveforms, Electrical properties, Far field, Radar cross sections, Terrain analysis radar, Dielectric properties, Canopies, Bistatic radar

Subject Categories : Numerical Mathematics
      Active & Passive Radar Detection & Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE