Research Overview

Bahaa Saleh Carey Rappaport David Castañón Badri Roysam Miguel Velez-Reyes David Kaeli

Research Overview

Bahaa Saleh Carey Rappaport David Castañón Badri Roysam Miguel Velez-Reyes David Kaeli

The Bernard M. Gordon Center for Subsurface Sensing and Imaging

Systems

The Bernard M. Gordon Center for Subsurface Sensing and Imaging

Systems

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).

24/19/07

R1-B Effective Modeling (& SoilBED / SafeBED / SeaBED)

R1-B Effective Modeling (& SoilBED / SafeBED / SeaBED)

Carey RappaportNortheastern University

Carey RappaportNortheastern University

Electromagnetic models Microscopy applications SeaBED acoustic applications SoilBED application SafeBED appliations

Computational Modeling and Applications

Theme:Theme:

Efficient and Realistic Computer Modeling of Wave Interaction with Targets in Layered and Inhomogeneous Media for Subsurface Imaging

34/19/07

Electromagnetic Wave ModelsElectromagnetic Wave Models R1B p1 “SAMM Algorithm for Efficient

Computation of Nearfield Scattering in Lossy Ground from Borehole Sources,” Ann Morgenthaler

R1B p1 “SAMM Algorithm for Efficient Computation of Nearfield Scattering in Lossy Ground from Borehole Sources,” Ann Morgenthaler

DIPOLE SOURCE

AIR

GROUND

TILTED PROLATE TARGET

DIPOLE SOURCE

AIR

GROUND

TILTED PROLATE TARGET

R1B p2 “Validating Four-Zeros 2D FDTD Model,” Maryam Jalalinia

44/19/07

Electromagnetic Wave Models (Cont’d)Electromagnetic Wave Models (Cont’d)

R1B p3 Matlab-based FDFD Method for Microwave Breast Imaging,” Qiu Dong transmitters

1 2 3 4 5

6 7

R1B p5 “A Novel Modeling and Inversion Method to Image Weakly Scattering Sub-Cellular Structure,” Ersel Karbeyaz

54/19/07

Microscopy ApplicationsMicroscopy Applications

R1B p4 “A New Approximate Model for Microscopy Imaging,” Heidy Sierra

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 p6 “Diffuse Optical Tomography with Acoustic Photonic Imaging,” Blair Simon

R1B p7 “Improving Data Acquisition of the Dual-Wedge Confocal Microscope," Steve Guerrera Undergraduate research developing a high-speed data acquisition system for dual-wedge confocal microscope.

R1B p8 “Photo-Thermal Coherent Confocal Microscope," Sean Sullivan

64/19/07

SeaBED Acoustic ApplicationsSeaBED Acoustic ApplicationsSea p3 “Calibrated Bistatic Rayleigh- Born Bottom Reverberation Model for Fluctuating Range-Dependent Continental Shelf Environments,” Ameya Galinde

Sea p4 “Statistics of Broadband Transmissions Through a Range-Dependent Fluctuating Ocean Waveguide,” Mark Andrews

May 14 2003: 09:32:25 EDT

May 15, 2003: 08:49:55 EDT70m

80m

100m120m

70m

80m

100m120m200m

400m

OAWRS: instantaneous wide-area ocean waveguide remote sensing technique using sound waves

• Correct for source level and transmission losses

• Calibrate the one way transmission data

• Model the background reverberation due to scattering from volume inhomogeneities in the sea bottom

74/19/07

SoilBED GPR ApplicationsSoilBED GPR ApplicationsSoil p1 “Forward TD Ground Penetrating Radar Modeling of Bridge Decks for Detecting Deterioration,” Kim Belli

Develop FDTD forward model and inversion scheme, calibrated with GSSI donated 2 GHz GPR to find subsurface pavement anomalies

Soil p2 “Characterization of GPR Antenna Radiation Pattern for Implementation into FDTD Simulation"Kim Belli

Soil p4 “Progress of Rapid Soil Characterization System,” Eilish Corey

Soil p2 “Tunnel Detection Using Cross-Well Radar,” Arvin Farid, Jose Martinez

Soil p5 “Bimodal Detection of Underground Contamination in Two Dimensional Systems,” Maria Serano

13

4

20 cm

2

Metal Rod

10 cm

84/19/07

SafeBED Security ApplicationsSafeBED Security Applications

SafeBED p2 “Computational Modeling and Analysis of Radar Scattering by Metallic Body-Worn Explosive Devices Covered with Wrinkled Clothing,” Amanda AngellSafeBED p3 “Body-Worn Improvised Explosive Device Detection Using Millimeter-Wave Radar,” Richie Sullivan

SafeBED p1 “Terahertz Applications for Detection of Explosives,” Jian Chen

Frequency (THz)1.6

2.0 2.40.5 1.20.8

RDX

0.82THz

1.5THz

1.96THz

240

180

120

60

(

cm

-1 )

Frequency (THz)

1.6THz

1.6 2.0 2.40.5 1.20.8

2.2THzTNT80

60

40

20

(

cm

-1 )