Sound Source Depth Estimation Based on Multipath Time Delay in Deep Water
In deep water, when the minimum time arrivals in all receiver depths are rowed and then fixed on a certain time on time delay-receiver depth plane, time delays of bottom reflection (BR) and surface-bottom-surface reflection (SBS) have a linear relationship with the receiver depth under the approximation condition. Besides, time delay arrivals of BR and SBS intersect at a receiver depth which is equal to the negative source depth. Based on the feature, a source depth estimation method with the multipath time delay difference is proposed. If the depths of receivers which are deployed vertically are known, the pair of time delays can be used to estimate the source depth. With the proposed method the source depth can be estimated successfully at a moderate range in deep water without complicated matched-field calculations in the simulations and experiments.
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Document Type: Short Communication
Publication date: March 1, 2018
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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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