Accession Number:

ADA622085

Title:

Large-Scale, Full-Wave Scattering Phenomenology Characterization of Realistic Trees: Preliminary Results

Descriptive Note:

Final rept. 2014-2015

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD SENSORS AND ELECTRON DEVICES DIRECTORATE

Personal Author(s):

Report Date:

2012-09-01

Pagination or Media Count:

18.0

Abstract:

Scattering characterization of realistic tree structures is performed to facilitate the development of low-frequency P-band foliage-penetration radars. The full-wave analysis approach employs a parallelized 3-dimensional finite-difference time-domain FDTD algorithm deployed on high performance computer systems to simulate the far-field electromagnetic responses of foliage scenes. The scattering behavior of a single tree is first considered as a function of frequency, polarization, signal incidence angle, and structural fidelity, and then large-scale simulations are carried out to examine the responses of a forest stand in both the frequency and imaging domains. The results featured are from the first phase of an ongoing study to investigate the feasibility of applying large-scale electromagnetic simulations to support airborne-based sensing of obscured ground targets.

Subject Categories:

  • Forestry
  • Active and Passive Radar Detection and Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE