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Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
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Through-Ice Acoustic Communication for Ocean Worlds Exploration.

Hyeong Jae Lee1, Yoseph Bar-Cohen1, Mircea Badescu1

  • 1NASA/Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.

Sensors (Basel, Switzerland)
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Summary
This summary is machine-generated.

Wireless communication through deep ice is possible using acoustics. This technology could enable data and image transmission for subsurface probes on icy moons, overcoming tether limitations.

Keywords:
EuropaOcean Worlds missionsacousticscommunicationplanetary exploration

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Area of Science:

  • Planetary Science
  • Geophysics
  • Communications Engineering

Background:

  • Subsurface exploration of ocean worlds requires communication through kilometers of ice.
  • Tethered communication systems for ice-penetrating probes are prone to failure.
  • Developing wireless deep-ice communication is crucial for mission success.

Purpose of the Study:

  • To develop and demonstrate wireless communication capabilities through thick ice.
  • To complement existing tethered communication methods for subsurface probes.
  • To assess the feasibility of acoustic communication for ocean world exploration.

Main Methods:

  • Acoustic transceivers were embedded in glacial ice at Matanuska Glacier, Alaska.
  • Acoustic attenuation measurements were conducted in situ.
  • Data and image files were transmitted wirelessly through ice at specific frequencies.

Main Results:

  • Acoustic communication was demonstrated as viable through 100 meters of glacial ice.
  • Successful transmission of data and image files was achieved in the 13-18 kHz frequency band.
  • Preliminary results suggest feasibility for multi-kilometer communication at lower frequencies (around 1 kHz).

Conclusions:

  • Wireless acoustic communication is a viable technology for deep-ice exploration.
  • Further research is needed to characterize acoustic attenuation in refrozen boreholes for long-range communication.
  • This technology has significant implications for future missions to ocean worlds.