Single Receiver Underwater Localization of an Unsynchronized Periodic Acoustic Beacon Using Synthetic Baseline

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Bruno Ferreira (Author) FEUP; Graça, PA (Author) Other; José Carlos Alves (Author) FEUP; Nuno Cruz (Author) FEUP

Journal

Title: IEEE Journal of Oceanic Engineering

Vol. 48

Pages: 1112-1126

ISSN: 0364-9059

Publisher: IEEE

Indexing

ISI Web of Knowledge - 0 Citations

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Other information

Authenticus ID: P-00Y-NQ6

DOI: 10.1109/joe.2023.3275611

Abstract (EN): This article addresses the 3-D localization of a stand-alone acoustic beacon based on the Principle of Synthetic Baseline using a single receiver on board a surface vehicle. The process only uses the passive reception of an acoustic signal with no explicit synchronization, interaction, or communication with the acoustic beacon. The localization process exploits the transmission of periodic signals without synchronization to a known time reference to estimate the time-of-arrival (ToA) with respect to an absolute time basis provided by the global navigation satellite system (GNSS). We present the development of the acoustic signal acquisition system, the signal processing algorithms, the data processing of times-of-arrival, and an estimator that uses times-of-arrival and the coordinates where they have been collected to obtain the 3-D position of the acoustic beacon. The proposed approach was validated in a real field application on a search for an underwater glider lost in September 2021 near the Portuguese coast.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15