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Title: Comparing EM Models to RCS Measurements for Building-Penetration Radar

For the DARPA VisiBuilding program, SRI International and Lawrence Livermore National Laboratory are using a variety of electromagnetic (EM) simulation codes and measurement techniques to analyze how radar pulses interact with building structures and materials. Of primary interest is how interior wall and corner reflections are delayed, attenuated, and dispersed by the exterior wall materials. In this paper, we compare microwave frequency-domain radar cross section (RCS) chamber measurements of scale models of simple buildings to finite-element and finite-difference full-wave time-domain and ray-tracing models. The ability to accurately reconstruct the building from these models is compared with the reconstruction from chamber measurements. We observe that careful attention to the spatial sampling in the EM models is essential to achieving good reconstruction at the higher frequencies.
Authors:
;
Publication Date:
OSTI Identifier:
919234
Report Number(s):
UCRL-PROC-231153
TRN: US200822%%179
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: Adaptive Sensor Array Processing Workshop, Lexington, MA, United States, Jun 05 - Jun 06, 2007
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CROSS SECTIONS; LAWRENCE LIVERMORE NATIONAL LABORATORY; PROCESSING; RADAR; SAMPLING; SCALE MODELS; SIMULATION; BUILDINGS