Comparisons of laboratory scale measurements of three-dimensional acoustic propagation with solutions by a parabolic equation model

F Sturm, A Korakas - The Journal of the Acoustical Society of America, 2013 - pubs.aip.org
In this paper, laboratory scale measurements of long range across-slope acoustic
propagation in a three-dimensional (3-D) wedge-like environment are compared to …

Simplex based three-dimensional eigenray search for underwater predictions

R de Moraes Calazan, OC Rodríguez - The Journal of the Acoustical …, 2018 - pubs.aip.org
A solution for the calculation of three-dimensional (3D) eigenrays based on Simplex
optimization, implemented in a 3D Gaussian beam model, is investigated in this paper. The …

Testing and verification of a scale-model acoustic propagation system

JD Sagers, MS Ballard - The Journal of the Acoustical Society of …, 2015 - pubs.aip.org
This paper discusses the design and operation of a measurement apparatus used to
conduct scale-model underwater acoustic propagation experiments, presents experimental …

TRACEO3D ray tracing model for underwater noise predictions

RM Calazan, OC Rodríguez - … Innovation for Smart Systems: 8th IFIP WG …, 2017 - Springer
Shipping noise is the main source of underwater noise raising concern among
environmental protection organizations and the scientific community. Monitoring of noise …

Results from a scale model acoustic propagation experiment over a translationally invariant wedge

JD Sagers - Proceedings of Meetings on Acoustics, 2014 - pubs.aip.org
The investigation of three-dimensional (3D) acoustic propagation in the ocean is an area of
ongoing research and includes the development of numerical models [1–7] and …

Parallel ray tracing for underwater acoustic predictions

RM Calazan, OC Rodríguez, N Nedjah - International Conference on …, 2017 - Springer
Different applications of underwater acoustics frequently rely on the calculation of
transmissions loss (TL), which is obtained from predictions of acoustic pressure provided by …

Time-frequency features of 3-D sound propagation in wedge-shaped oceanic waveguides

F Sturm, J Bonnel - IEEE Journal of Oceanic Engineering, 2015 - ieeexplore.ieee.org
This paper considers propagation of low-frequency broadband pulses in shallow water. It
focuses on across-slope propagation in wedge-shaped oceanic waveguides and on single …

Scale-model scattering experiments using 3D printed representations of ocean bottom features

DC Calvo, M Nicholas, JM Fialkowski… - OCEANS 2015-MTS …, 2015 - ieeexplore.ieee.org
This study examines tank measurements of acoustic backscatter from different scale-model
representations of ocean bottom features. The emphasis is on comparing backscatter from a …

2.5 d and 3d green's functions for acoustic wedges: image source technique versus a normal mode approach

A Tadeu, EGA Costa, J Antonio… - Journal of …, 2013 - World Scientific
2.5 D and 3D Green's functions are implemented to simulate wave propagation in the vicinity
of two-dimensional wedges. All Green's functions are defined by the image-source …

Generalized ray method for three-dimensional propagation in a penetrable wedge

P Borejko, CF Chen, YH Pao - Acta Mechanica, 2018 - Springer
A generalized ray solution is presented for the three-dimensional (3-D) acoustic field
produced by a transient point source in a rigid-bottom, fast-speed fluid-bottom, and fast …