Transcript An Engineering Research Center for Integrated Sensing and

The Bernard M. Gordon
Center for Subsurface Sensing and Imaging Systems
Research
Overview
Bahaa Saleh
Carey Rappaport
David Castañón
Badri Roysam
Miguel Velez-Reyes
David Kaeli
This work was supported by in part by the Gordon Center
for Subsurface Sensing and Imaging Systems, under the
Engineering Research Centers Program of the National
Science Foundation (Award # EEC-9986821).
R1-B Effective Modeling
(& SoilBED / SafeBED / SeaBED)
Carey Rappaport
Northeastern University
Computational Modeling and Applications
 Electromagnetic models
 Microscopy applications
 SeaBED acoustic applications
 SoilBED application
 SafeBED appliations
Efficient and Realistic Computer Modeling of
Theme: Wave Interaction with Targets in Layered and
Inhomogeneous Media for Subsurface Imaging
4/19/07
2
Electromagnetic Wave Models
AIR
DIPOLE
SOURCE
 R1B p1 “SAMM Algorithm for Efficient Computation
of Nearfield Scattering in Lossy Ground from
Borehole Sources,” Ann Morgenthaler
TILTED
PROLATE
TARGET
GROUND
R1B p2 “Validating Four-Zeros 2D
FDTD Model,” Maryam Jalalinia
4/19/07
3
Electromagnetic Wave Models (Cont’d)
R1B p3 Matlab-based FDFD Method
for Microwave Breast Imaging,”
Qiu Dong
1
6
transmitters
2
3
4
5
7
R1B p5 “A Novel Modeling and Inversion
Method to Image Weakly Scattering SubCellular Structure,” Ersel Karbeyaz
4/19/07
4
Microscopy Applications
R1B p4 “A New Approximate Model
for Microscopy Imaging,” Heidy Sierra
R1B p6 “Diffuse Optical Tomography
with Acoustic Photonic Imaging,”
Blair Simon
Computational models used to characterize
surfaces of bone non-invasively, using the interaction
of light with two focused sound sources, with
application to characterization of arthritic joints.
R1B p7 “Improving Data
Acquisition of the Dual-Wedge
Confocal Microscope," Steve
Guerrera
R1B p8 “Photo-Thermal
Coherent Confocal
Microscope," Sean Sullivan
Undergraduate research developing
a high-speed data acquisition system for
dual-wedge confocal microscope.
4/19/07
5
SeaBED Acoustic Applications
Sea p3 “Calibrated Bistatic Rayleigh- Sea p4 “Statistics of Broadband
Born Bottom Reverberation Model for Transmissions Through a RangeFluctuating Range-Dependent
Dependent Fluctuating Ocean
Continental Shelf Environments,”
Waveguide,” Mark Andrews
Ameya Galinde
May 14 2003: 09:32:25
May 15, 2003: 08:49:55
70m
70m
EDT
EDT
• Correct for source
level and transmission
losses
• Calibrate the one way
transmission data
80
m
• Model the background
reverberation due to
scattering from volume
inhomogeneities in the
sea bottom
80m
100m
120m
100m
120m
200m
400m
OAWRS: instantaneous wide-area ocean waveguide remote
sensing technique using sound waves
4/19/07
6
SoilBED GPR Applications
Soil p1 “Forward TD Ground Penetrating
Radar Modeling of Bridge Decks for
Detecting Deterioration,” Kim Belli
Soil p2 “Characterization of GPR Antenna
Radiation Pattern for Implementation
into FDTD Simulation"
Kim Belli
Develop FDTD forward model
and inversion scheme,
calibrated with GSSI donated
2 GHz GPR to find subsurface
pavement anomalies
Soil p2 “Tunnel Detection Using Cross-Well
Radar,” Arvin Farid, Jose Martinez
Soil p4 “Progress of Rapid Soil
Characterization System,” Eilish Corey
3
4
4/19/07
Metal
Rod
20 cm
10 cm
1
2
Soil p5 “Bimodal Detection of
Underground Contamination in
Two Dimensional Systems,”
Maria Serano
7
SafeBED Security Applications
SafeBED p1 “Terahertz Applications for Detection
of Explosives,” Jian Chen
80
RDX
180
0.82THz
120
a (cm-1 )
a (cm-1 )
240
1.96THz
1.5THz
60
TNT
40
1.6THz
20
0.5
0.8
1.2
1.6
Frequency (THz)
2.0
2.4
2.2THz
60
0.5
0.8
1.2
1.6
Frequency (THz)
2.0
2.4
SafeBED p2 “Computational Modeling
and Analysis of Radar Scattering by
Metallic Body-Worn Explosive Devices
Covered with Wrinkled Clothing,”
Amanda Angell
SafeBED p3 “Body-Worn
Improvised Explosive Device
Detection Using Millimeter-Wave
Radar,” Richie Sullivan
4/19/07
8