Performance Study of Acoustic Identification Tags for Autonomous Underwater Vehicles Navigation
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Miramontes, Alexander
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Abstract
In underwater environments, navigation and localization rely on precise information as to where an object is relative to its surroundings. Several methods of underwater navigation and localization have been developed, one of which are Acoustic Identification (AID) tags. The AID tag consists of several horizontally stacked stratified acrylic layers that are able to reflect emitted acoustic signals, while at the same time being low cost and low maintenance. The emitted acoustic signal will come from a source transducer underwater and receive the reflected signal of the tag. This paper presents a performance evaluation of the Acoustic Identification tags by testing the reflective signal strength of the tag. Different horizontal, vertical and angular positions of the source transducer are used to position it relative to the tag and emit and receive the reflected signal. The signal is then analyzed to measure how well the unique reflection appears and thus provides a proof-of-concept of using AID tags for underwater navigation and localization.
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Undergraduate Research Option Thesis