Underwater Unexploded Ordnance (UXO) Classification Using ...
UXO Classification with MetalMapper TM Data
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Transcript of UXO Classification with MetalMapper TM Data
UXO Classification with MetalMapperTMData
D.D. “Skip” Snyder - Snyder Geoscience, Inc.
Co-Authors:Mark Prouty, David George, Mary Poulton,Anna Szidarovszky, Tom King
Partners in Environmental Technology Conference & Workshop, December 2009
Outline•Background•Interpretation
▫Data Processing▫Classification (Decisions)
•SLO Results•Summary Remarks
MetalMapperMetalMapper
MetalMapper – Design features
•Compact, man-portable electronics
•3 Orthogonal Tx Loops
•7 tri-axial induction (dB/dt) receiver cubes
•Mapping/Static Acquisition Modes
SLO – Cued ID Deployment (SLO)
MetalMapper Receivers•10 cm Cubes•3 Component, Orthogoal Multiturn
Receiver Coils
Transmitter Waveform
MetalMapper Static Survey2494 pts Occupied
2178 Target Picks 5 NEW Target Picks 309 Repeats
Survey Time – 6.5 Days 56.6 hr
Production Rate 383 pts/day 42 pts/hr
Data Processing
Interpretation – Parameter Interpretation – Parameter ExtractionExtraction
Discrimination & Discrimination & ClassificationClassification
Interpretation - Classification
4 Polarizability Types - SLO
Test ROC Curves - SLOMetalMapper – SLO List 1 MetalMapper – SLO List 2
Future•Develop More Compact MetalMapper
System▫Lighter Weight, Less Transmitter Coils
•Additional TEM Systems?▫Deeper TEM System for Mineral
Exploration▫Metal Detection System for Deeper Targets