Results 21 to 30 of about 2,279,354 (175)
Remote Sensing, 2021 A huge amount of seabed acoustic reflectivity data has been acquired from the east to the west side of the southern Adriatic Sea (Mediterranean Sea) in the last 18 years by CNR-ISMAR.
Mariacristina Prampolini +6 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
Acoustic data for seabed classification
, 2019 Acoustic data used for the supervised and unsupervised seabed classification using Functional Data Analysis and Time Series clustering from acoustic ...
Noela Sánchez (4102432) +2 more
core +1 more source
A comparison of supervised classification methods for the prediction of substrate type using multibeam acoustic and legacy grain-size data. [PDF]
PLoS ONE, 2014 Detailed seabed substrate maps are increasingly in demand for effective planning and management of marine ecosystems and resources. It has become common to use remotely sensed multibeam echosounder data in the form of bathymetry and acoustic backscatter ...
David Stephens, Markus Diesing
doaj +1 more source
Formation Control With Obstacle Avoidance of Underwater Swarms Based on Relative Visual Feedback
Journal of Field Robotics, EarlyView.ABSTRACT Underwater multi‐robot and swarm systems require advanced methodologies for controlling collective behavior. Conventional single‐robot techniques, such as tethering, sonar imaging, and acoustic localization, are not scalable or effective for swarm applications.
Andrea Infanti +7 more
wiley +1 more source
Dumpsite Seabed Characterization of the San Pedro Basin, CA, From Autonomous Vehicle Observations
Journal of Field Robotics, EarlyView.ABSTRACT A wide‐area seabed survey was conducted using autonomous underwater vehicles (AUVs) in a known dumpsite off the coast of Southern California that has been found to have widespread sediment contamination from the chemical dichlorodiphenyltrichloroethane (DDT).
Ryan A. McCarthy +4 more
wiley +1 more source
Classification method of seabed sonar image substrate based on ELM-AdaBoost
Journal of Radiation Research and Applied SciencesThe results of sediment classification are affected by the measurement environment. The water depth has a significant impact on the sound propagation, and the acoustic characteristics will be different under different water depths.
Chenli Tan, Fei Yin, Tingchen Jiang
doaj +1 more source
Ilmu Kelautan, 2016 Backscatter value was a key to determine seabed characteristic. Level of intensity or backscatter informed through seabed type. One approach was use to analyze seabed type based on the value of backscatter was Angular Range Analysis (ARA).
Fahrulian Fahrulian +3 more
doaj +1 more source
Reef Mapping Using Different Seabed Automatic Classification Tools
Geosciences, 2020 There is a great demand to develop new acoustic techniques to efficiently map the seabed and automate the interpretation of acoustic, sedimentological, and imaging data sets, eliminating subjectivity.
Pedro S. Menandro +7 more
doaj +1 more source
Bilinear Pooling With Poisoning Detection Module for Automatic Side Scan Sonar Data Analysis
IEEE Access, 2023 Side-scan sonar (SSS) images are difficult for automatic analysis due to the acoustic measurement parameters as well as the number of different objects that can be distant. In addition, there is a risk that the seabed analysis application may be attacked.
Dawid Polap +3 more
doaj +1 more source