Source Localization Using Multi-Path Time Delays Measured by Two Hydrophones in the Deep Ocean
In this paper, an efficient source location approach based on the time delay between bottom-surface reflection and surface-bottom reflection (TDBS) in the deep ocean was proposed. The source range and depth were derived with the TDBSs and the corresponding receiver depths on the basis of ray theory. For a single receiver, the relationship between the TDBS and the source position could be regarded as a monotonic function, which corresponded to the main lobe on the ambiguity surface calculated by matching the multipath time delays of the real data and the replicas. The source could be localized by the intersection of the main lobes, which were calculated using the TDBSs measured by at least two receivers. The performance was demonstrated with numerical simulation and experiments for the source in and out of the shadow zone.
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Document Type: Short Communication
Publication date: January 1, 2019
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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