ALERT: Awareness and Localization of Explosives-Related Threats

Robert Donatto, University of South Florida (ALERT)

Prof. Carey Rappaport, Northeastern University andProf. Jose MartinezNortheastern University

Standoff Radar Detection of Concealed Body-Worn Explosives

This material is based upon work supported by the U.S. Department of Homeland Security under Award Number 2008-ST-061-ED0001. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Department of Homeland Security.

Overview Safety Full Body MMW Imaging System New Mounting Design Previous Work Progress Tracking Rotation Videos Image Theory Trial Run Videos Current Status Test Configuration Future Work Acknowledgements Questions

Safety Wear protective eyewear when in lab

No eating or drinking in lab

Make sure all supplies are put back to original position after used

Full-Body Millimeter Wave Imaging System

Advantages Misconceptions

MMW Characteristics

=WavelengthC= 3 x 10^8 m/s (Speed of Light)ƒ= 60 x 10^9 Hz (Frequency 60GHz)=c/ƒ=5 mm

New Mounting Design

Previous Work Smooth rotation movement Converted Divide Factor Moved Encoder to secure location Mounted 2nd Stalk Built CPU stand Familiarize Stepper GUI

CPU StandCable mount

Progress Tracking Propeller Tool

Progress Tracking LabVIEW

Rotation Videos

Video 1: 1st Stalk attached Video 2: 2nd Stalk Vibration Test

Video 3: 2nd Stalk Error

Image Theory

Tx Rx`

Rx

Metal Sheet

Trial Run Videos

Front View Back View

Current Status Target Moving Toward Modules

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 100000

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Loops

Pha

se S

hift

(Deg

rees

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Current Status Modules Moving Toward Target

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 100000

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Loops

Pha

se S

hift

(Deg

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Current Status Sample Average

0 100 200 300 400 500 600 700 800 900 10000

50

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Loops

Pha

se S

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(Deg

rees

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Test Configuration Case Test 1

2.5 mm

2.5 mm

5 mm

Reference Plane

Test Configuration Case Test 2

Tx Rx

Future Works Build Gantry Tray/Aluminum Box Find Optimization of the Gain on

Transmitter or Receiver Perform Case Test 1 Perform Case Test 2  Record and Evaluate the

Amplitude/Phase Shift Data

Acknowledgements Prof. Carey Rappaport Prof. Jose Martinez Mr. Richard Moore Spiros Mantzavinos Dan Busoic Kate Williams The whole ALERT team!!!! The National Science Foundation The Department of Homeland

Security Northeastern University

Questions