Results 81 to 90 of about 1,765,935 (236)

Software‐Defined Sonar for Unmanned Underwater System

IET Radar, Sonar & Navigation
The advancement of intelligent unmanned underwater systems demands enhanced multifunctionality, flexibility, and an open architecture for sonar equipment.
Hongkun Zhou, Xiyun Ge, Ningyang Wei, Yuhang Gao, Xinyu Liu   +4 more
doaj   +1 more source

Low-Sidelobe Imaging Method Utilizing Improved Spatially Variant Apodization for Forward-Looking Sonar

Remote Sensing
For two-dimensional forward-looking sonar imaging, high sidelobes significantly degrade the quality of sonar images. The cosine window function weighting method is often applied to suppress the sidelobe levels in the angular and range dimensions, at the ...
Lu Yan, Juan Yang, Feng Xu, Shengchun Piao   +3 more
doaj   +1 more source

MSIS Image Postioning in Port Areas with the Aid of Comparative Navigation Methods

Polish Maritime Research, 2017
The article presents a method to determine the position of mechanically scanned sonar images by comparing them with the database of simulated synthetic images.
Wawrzyniak Natalia, Stateczny Andrzej
doaj   +1 more source

Artificial Intelligence for Blue Transformation: A Review of Predictive Modeling and Decision Support Systems in Sustainable Aquaculture

Sustainable Development, EarlyView.
ABSTRACT The FAO's “blue transformation” roadmap necessitates a fundamental shift towards precision aquaculture to meet global food security targets while minimizing environmental footprints. This review provides a comprehensive overview of how artificial intelligence (AI) and decision support systems (DSS) serve as pivotal enablers for the “better ...
Mustafa Öz, Enes Üstüner
wiley   +1 more source

SoNaR-1

, 2014
Item does not contain fulltextHet SoNaR-corpus is een tekstcorpus dat bestaat uit twee delen, nl. SoNaR-500 en SoNaR-1. SONAR-500 bevat meer dan 500 miljoen woorden tekst afkomstig uit uiteenlopende domeinen en genres.
Reynaert, M., Reynaert, Martin, Schuurman, Ineke, Clercq, O. De, Hoste, Veronique, van den Heuvel, Henk, Desmet, B., Hoste, V., Heuvel, H. van den, Desmet, Bart, De Clercq, Orphée, Reynaert, M.W.C., Oostdijk, Nelleke, Monachesi, P., Monachesi, Paola, Schuurman, I., Oostdijk, N.H.J.   +16 more
core  

Joint Motion Error Estimation Algorithm for Multibeam Synthetic Aperture Sonar

IEEE Access, 2018
Multibeam echo sounder (MBES) and synthetic aperture sonar (SAS) are effective image sonar systems used as the major underwater observation instruments. The MBES system can get the fullscan detection without gaps, while the resolution on the along-track ...
Bo Wei, Haisen Li, Tian Zhou, Chao Xu
doaj   +1 more source

DSM Sonar Software [PDF]

, 2020
Post-processing of sonar data is a common task in ocean science. This includes the creation of bathymetric maps, the use of seafloor backscatter information to determine sediment types as well as the analysis of water column data, e.g. for the assessment
Weiß, Tim, Greinert, Jens
core   +1 more source

Robust Underwater Object Detection and Relative Navigation Using Simulation-Aided Sonar Image Translation

한국해양공학회지
Robust underwater object detection and relative navigation remain challenging because of the severe degradation of sonar imagery caused by acoustic noise and artifacts.
Eunsu Kim, Seonghun Hong, Sukmin Yoon
doaj   +1 more source

Geo2DGS‐SLAM: Geometry‐Driven SLAM With 2D Gaussian Splatting

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Recent advances in SLAM systems based on 3D Gaussian Splatting have enabled dense and photorealistic scene reconstruction. However, 3DGS‐based methods still suffer from limited geometric awareness due to the lack of normal rendering support, view inconsistency and weak depth constraints, ultimately hindering high‐fidelity geometric ...
Weiqing Yan, Tianhao Xie, Liang Liao, Wujie Zhou, Chang Tang   +4 more
wiley   +1 more source

Topology‐based Visual Analysis of Hydrothermal Plumes

Computer Graphics Forum, EarlyView.
Abstract Hydrothermal plumes are turbulent structures of intense heat and mineral smoke that rise and disperse into the deep ocean. Existing models generally characterize these systems as a single axisymmetric plume originating from a point source. However, this assumption breaks down in weakly venting, spatially distributed systems, where low‐flux ...
Adhitya Kamakshidasan, Tushar Jain, Karen Bemis, Valerio Pascucci   +3 more
wiley   +1 more source