Acoustic imaging of objects buried in soil.
In this study, we demonstrate an acoustic system for high-resolution imaging of objects buried in soil. Our goal is to image cultural artifacts in order to assess in a rapid manner the historical significance of a potential construction site. We describe the imaging system and present preliminary images produced from data collected from a soil phantom. A mathematical model and associated computer software are developed in order to simulate the signals acquired by the system. We have built the imaging system, which incorporates a single element source transducer and a receiver array. The source and receiver array are moved together along a linear path to collect data. Using this system, we have obtained B-mode images of several targets by using delay-and-sum beamforming, and we have also applied synthetic aperture theory to this problem.
Frazier
C H
CH
Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, 61801, USA. hillsley@brl.uiuc.edu
Cadalli
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N
Munson
D C
DC
O'Brien
W D
WD
D000162:Acoustics; D008962:Models, Theoretical; D012987:Soil
D012987:Soil