Related Experiment Video
Updated: Jun 6, 2025
09:01
Handling and Tagging Techniques for Implanting Juvenile American Shad with a New Acoustic Microtransmitter
Published on: June 14, 2024
2.2K
Passive acoustic identification tags for marking underwater docking stations
Nizar Somaan1, Ananya Bhardwaj1, Karim G Sabra1
1School of Mechanical Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332, USAnsomaan3@gatech.edu, ab22@gatech.edu, ksabra3@gatech.edu.
JASA Express Letters
|December 2, 2024
Summary
This study shows how passive Acoustic Identification (AID) tags can accurately guide autonomous underwater vehicles for docking. Experiments confirm AID
Area of Science:
- Marine robotics
- Acoustic signal processing
- Underwater navigation
Background:
- Autonomous underwater vehicles (AUVs) require precise positioning for critical operations like docking.
- Existing localization methods can be limited in challenging underwater environments.
Purpose of the Study:
- To demonstrate the feasibility of using passive Acoustic Identification (AID) tags for accurate AUV localization.
- To enable reliable homing and docking of AUVs using acoustic signatures.
Main Methods:
- Utilizing a constellation of passive Acoustic Identification (AID) tags.
- Conducting scaled experiments with AID tags made of concentric hemispherical acrylic layers.
- Employing a parameterized signal processing detection methodology to enhance tag detectability.
Main Results:
- Successful demonstration of AID tag feasibility for AUV localization.
- Generation of unique backscattered acoustic signatures from AID tags.
- Improved detectability of AID tags in cluttered acoustic environments.
Conclusions:
- Passive Acoustic Identification (AID) offers a viable solution for accurate underwater vehicle navigation.
- The developed signal processing techniques enhance the robustness of AID systems.
- This technology supports safer and more efficient AUV docking and homing operations.
