Acoustic propagation from a spiral wave front source in an ocean environment

2012 ◽  
Vol 131 (3) ◽  
pp. 1978-1986 ◽  
Author(s):  
Brian T. Hefner ◽  
Benjamin R. Dzikowicz
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Acoustic Propagation ◽  
Ocean Environment

Modeling a spiral wave front source in an ocean environment

2011 ◽  
Vol 130 (4) ◽  
pp. 2527-2527
Author(s):  
Brian T. Hefner ◽  
Benjamin R. Dzikowicz
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Ocean Environment

Common mechanism links spiral wave meandering and wave-front–obstacle separation

1997 ◽  
Vol 55 (1) ◽  
pp. 1193-1196 ◽  
Author(s):  
J. M. Starobin ◽  
C. F. Starmer
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Common Mechanism

Flow-dependent modeling of acoustic propagation based on DG-FEM method

2021 ◽  
Author(s):  
Zichen Wang ◽  
Jian Xu ◽  
Xuefeng Zhang ◽  
Can Lu ◽  
Kangkang Jin ◽  
...  
Keyword(s):  
Sound Propagation ◽  
Transmission Loss ◽  
Acoustic Propagation ◽  
Water Area ◽  
Current Speed ◽  
Propagation Model ◽  
Propagation Loss ◽  
Two Dimensional ◽  
Underwater Sound ◽  
Ocean Environment

AbstractThis paper proposes a two-dimensional underwater sound propagation model using the Discontinuous Galerkin Finite Element Method (DG-FEM) to investigate the influence of current on sound propagation. The acoustic field is calculated by the convected wave equation with the current speed parameter. Based on the current speed data from an assimilation model, a two-dimensional coupled acoustic propagation model in the Fram Strait water area is established to observe the variability in propagation loss under different seasonal velocities in the real ocean environment. The transmission loss and signal time structure are examined. The results obtained in different source frequencies are also compared. It appears that the current velocity, time and range variation all have an effect on underwater sound propagation.

scholarly journals Time-evolving acoustic propagation modeling in a complex ocean environment

2013 ◽  
Author(s):  
M. E. G. D. Colin ◽  
T. F. Duda ◽  
L. A. te Raa ◽  
T. van Zon ◽  
P. J. Haley ◽  
...  
Keyword(s):  
Acoustic Propagation ◽  
Propagation Modeling ◽  
Ocean Environment

Navigation on an unmanned surface vehicle using an acoustical spiral wave front beacon.

2010 ◽  
Vol 128 (4) ◽  
pp. 2328-2328 ◽  
Author(s):  
Benjamin R. Dzikowicz ◽  
Brian T. Hefner ◽  
Robert A. Leasko
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Unmanned Surface Vehicle

scholarly journals Demonstration of spiral wave front sonar for active localization

2019 ◽  
Vol 146 (6) ◽  
pp. 4821-4830
Author(s):  
Benjamin R. Dzikowicz ◽  
James F. Tressler ◽  
David A. Brown
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Active Localization

Testing and modeling of a spiral wave front beacon for use in navigation.

2010 ◽  
Vol 127 (3) ◽  
pp. 1748-1748 ◽  
Author(s):  
Benjamin R. Dzikowicz ◽  
Brian T. Hefner
Keyword(s):  
Wave Front ◽  
Spiral Wave

Navigation and sonar applications of an acoustical spiral wave front beacon

2011 ◽  
Vol 130 (4) ◽  
pp. 2527-2527
Author(s):  
Benjamin R. Dzikowicz ◽  
Brian T. Hefner ◽  
Robert A. Leasko
Keyword(s):  
Wave Front ◽  
Spiral Wave

Spiral wave front sonar for active target localization on an unmanned underwater vehicle

2019 ◽  
Vol 146 (4) ◽  
pp. 3020-3020
Author(s):  
Benjamin Dzikowicz ◽  
Jason L. Kost ◽  
Jacob T. Heddings ◽  
David A. Brown
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Underwater Vehicle ◽  
Target Localization ◽  
Active Target ◽  
Unmanned Underwater Vehicle
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