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The use of synthetic aperture sonar to survey seafloor massive sulfide deposits
(2015)
With the advent of advanced deep sea mining technology, seafloor mining is poised to begin on a
global scale. For the success of any mining operation, it is crucial that both the operators and
regulatory bodies possess ...
Wideband Interferometry in Synthetic Aperture Sonar
(2013)
Synthetic aperture sonar (SAS) interferometry can provide very high resolution images and topographic maps of the seafloor over large swaths. Processing of interferometric data to retrieve reliable depth estimates of the ...
Automatic detection of marine gas seeps using an interferometric sidescan sonar
(2016)
There is a significant need for reliable, cost-effective, and preferably automatic methods for detecting and monitoring marine gas seeps. Seeps at the seafloor may originate from natural sources including sediments releasing ...
The Effect of Internal Wave-Related Features on Synthetic Aperture Sonar
(2015)
In October 2012, the Centre for Maritime Research and Experimentation (CMRE, La Spezia, Italy) conducted trials from the NATO research vessel (RV) Alliance, off Elba Island, Italy. During this trial, data were collected ...
Challenges in Seafloor Imaging and Mapping With Synthetic Aperture Sonar
(2011)
Synthetic aperture sonar (SAS) is emerging as an imaging technology that can provide centimeter resolution over hundreds-of-meter range on the seafloor. Although the principle of SAS has been known for more than 30 years, ...
Wideband Synthetic Aperture Sonar Back Projection with Maximization of Wave Number Domain Support
(2017)
Wideband and widebeam synthetic aperture sonar (SAS) can provide information on the frequency- and aspect-dependent scattering in a scene. We suggest an approach to predict the quality of the sensor data over the available ...
Comparison of synthetic aperture sonar images and optical images of UXOs from the Skagerrak chemical munitions dumpsite
(2019-11-28)
After World War II chemical munitions were loaded onto large ships and sunk
in the Skagerrak Strait in the Norwegian trench, in deep waters between Norway and Denmark. In collaboration with the Norwegian Coastal Administration, ...
Adaptive phase estimation filter in long range synthetic aperture sonar interferometry
(2023-05-15)
Synthetic aperture sonar (SAS) interferometry is a technique for very high resolution imaging and mapping of the seabed. In SAS interferometry, the seabed depth estimation performance is a function of the system, the ...
Interferometric Synthetic Aperture Sonar in Pipeline Inspection
(2010-10-14)
Accurate and reliable inspection of subsea pipelinestraditionally requires the use of multiple sensors, which againhave different requirements for range and geometry. This makespipeline inspection a time consuming and ...