MIDP Workshop

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MARS GROUND PENETRATING RADAR (GPR, MIDP) PI
Soon Sam Kim
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Level 1 and Level 2 Milestones for FY2004

• Development of GPR Technology
• GPR Hardware
• Signal Processing
• Numerical simulation
• Draft GPR Prototype Design
• Electronics
• Antenna structure

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Technical Accomplishments

• For higher GPR sensitivity, we have implemented
  and tested time varying gain capability
  (on-going).
• We have increased transmitter power for deeper
  penetration.
• We have extensively field tested the GPR in
  Alaska permafrost, sand dunes, and Hawaii
  volcanic fields.
• We are working on advanced signal processing
  algorithms.
• We have submitted a GPR proposal, GOPHER, in
  response to MSL AO.

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Miniature GPR

• We have design/fabrication/field tested Miniature
  GPR.

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Miniature GPR
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GPR Calibration with 2 Metal Pipes, Indio, CA _at_
1 m, 4 m Depths
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Alaskan Permafrost GPR Field Testing

• Successfully Field Tested the Miniature GPR in
  Fairbanks, AK (March 15 19, 2004)

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Alaskan Permafrost Vault Crater, Fairbanks,
AK. (March 15 19, 2004) Detected liquid water
layer along the crater boundary down to the depth
of 36 m.
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Sand Dunes Dumont Dunes, CA Sloping sand depth
match with with observed height of 45 m, at
dielectric constant of 2.55 (May-June, 2004)
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MSL GPR Antenna Structure, GOPHER
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MSL GPR Antenna Simulation
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MSL Rover Simulation Platform
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Plans for the Next Quarter

• Refinement of GPR electronics for high
  sensitivity, deeper penetration, 5 10 W Range,
  50 100 m Depth of Penetration (on going).
• Refinement of Time Varying Gain
• Signal Processing Algorithm
• Numerical Simulation (U of Kansas)
• Field Testing in Indio, and Dumont Dunes, CA
• Field Testing in Hawaii (August 12 14, 2004)
• Hawaii Volcanoes National Park
• Cinder Cones in Mauna Kea, Hawaii

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Financial Summary102162 3.0

• FY03 FY04 Funding 842K
• Total Obligated 570 K
• Total Costed 411K