Single-hydrophone bearing estimation for long-range underwater navigation
Beacon acoustic sources can aid long-range underwater navigation since using an inertial navigation system alone becomes inaccurate over long duration. Here, estimates of the relative position of a single hydrophone mounted on a small underwater platform are used only while recording a 2-min-long low-frequency (200-300 Hz) transmission from a beacon source located at depth ∼1100 m and ranges up to ∼148 km in the vicinity of two seamounts. Accounting for the hydrophone motion in the matched-filtering process during the source transmission allows to estimate the bearing of this single beacon source for navigation purposes despite environmental complexity.
Authors
- Laurent Grare (ORCID: https://orcid.org/0000-0002-3505-571X)
- Luc Lenain (ORCID: https://orcid.org/0000-0001-9808-1563)
- Karim G. Sabra (ORCID: https://orcid.org/0000-0003-4191-3044)
- Matthew A. Dzieciuch (ORCID: https://orcid.org/0000-0001-7926-7602)
- Davis Rider (ORCID: https://orcid.org/0009-0000-8709-9565)
Institutions
- Georgia Institute of Technology (US)
- Scripps Institution of Oceanography (US)
- University of California San Diego (US)
Publication Details
- Journal
- JASA Express Letters
- Published
- 2026-09-01
- DOI
- https://doi.org/10.1121/10.0046290
- Primary Topic
- Underwater Acoustics Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Office of Naval Research