TY - GEN
T1 - Implementation and application of a real-time sidescan sonar simulator
AU - Riordan, James
AU - Omerdic, Edin
AU - Toal, Daniel
PY - 2005
Y1 - 2005
N2 - This paper describes the functional theory and design of a modular simulator to generate, in real-time, physically representative spatio-temporal sidescan sonar echo data. The seafloor topography Is generated using fractal theory and the resulting terrain is tesselated into triangular facets. Propagation of the acoustic fan beam is determined by a ray theory solution of the governing wave equation while the contribution of each facet to the recorded intensity at the sonar transducer is resolved by applying Jackson's seafloor scattering model. The computational bottleneck inherent in the discovery of illuminated facets at each ping is significantly reduced by the implementation of an optimised mesh refinement scheme intended for interactive rendering of large-scale complex surfaces described by polygonal meshes. The resulting performance increases enabled the successful integration of the sonar simulator with an existing AUV simulator. Synthetic images and the performance measures of the sidescan simulator image generation are presented.
AB - This paper describes the functional theory and design of a modular simulator to generate, in real-time, physically representative spatio-temporal sidescan sonar echo data. The seafloor topography Is generated using fractal theory and the resulting terrain is tesselated into triangular facets. Propagation of the acoustic fan beam is determined by a ray theory solution of the governing wave equation while the contribution of each facet to the recorded intensity at the sonar transducer is resolved by applying Jackson's seafloor scattering model. The computational bottleneck inherent in the discovery of illuminated facets at each ping is significantly reduced by the implementation of an optimised mesh refinement scheme intended for interactive rendering of large-scale complex surfaces described by polygonal meshes. The resulting performance increases enabled the successful integration of the sonar simulator with an existing AUV simulator. Synthetic images and the performance measures of the sidescan simulator image generation are presented.
UR - http://www.scopus.com/inward/record.url?scp=33746927998&partnerID=8YFLogxK
U2 - 10.1109/OCEANSE.2005.1513190
DO - 10.1109/OCEANSE.2005.1513190
M3 - Conference contribution
AN - SCOPUS:33746927998
SN - 0780391039
SN - 9780780391031
T3 - Oceans 2005 - Europe
SP - 981
EP - 986
BT - Oceans 2005 - Europe
T2 - Oceans 2005 - Europe
Y2 - 20 June 2005 through 23 June 2005
ER -