Results 71 to 80 of about 336,461 (224)
Wideband beam domain sparse Bayesian learning passive focusing localisation algorithm
IET Radar, Sonar & NavigationTo address the challenges of large‐aperture sonar systems passive localisation, this paper proposes the application of sparse Bayesian learning (SBL) for passive target localisation in the wideband beam domain. The proposed algorithm aims to overcome the
Hao Wang +3 more
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Nature‐Derived Chitosan Biopolymer: A Promising Candidate for Sustainable Electronics
Advanced Materials Technologies, Volume 11, Issue 19, 7 October 2026.In the creation of environmentally friendly devices, nature‐derived chitosan biopolymer is a promising contender for sustainable electronic research. It can be utilized to create more ecologically friendly scalable gadgets and has a variety of uses in different active layers of electronics.
Joshua McDonald +3 more
wiley +1 more source
DOA Estimation for UCAs Based on Virtual Subarray Beamforming Technique
MATEC Web of Conferences, 2018 Direction-of-arrival (DOA) estimation is always a hotspot research in the fields of radar, sonar, communication and so on. And uniform circular arrays (UCAs) are more attractive in the context of DOA estimation since their symmetrical structures have ...
Xu Bo, Huang Zhigang
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Diffraction effects in sonar array
, 2014 Humans can localize a sound source with the help of three effects, Head Related Transfer Function (HRTF), Interaural Time Difference (ITD) and Interaural Level Difference (ILD). With help of these three effects humans can sense where in the space the signal is coming from.
openaire +2 more sources
Journal of Algorithms & Computational Technology, 2009 In shallow water areas, to enhance underwater targets detection performance improve computation efficiency of active sonar, a computationally efficient adaptive beamformer (spatial filter) based on inverse QR (IQR) and recursive least-squares (RLS) is ...
Q. Wang, X. Pan
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Passive sonar with cylindrical array
Archives of Acoustics, 2014 The article presents a method of using active sonar with cylindrical array for passive monitoring of underwater sound sources. It is demonstrated that detecting a sound source and determining its bearings may be carried out with no changes in the construction of the receiver.
J. Marszal +4 more
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Estudo e desenvolvimento de algoritmos de sonar ativo para o mapeamento de áreas submersas [PDF]
, 2015 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2015.Recentes avanços no cenário marítimo brasileiro - como a descoberta e exploração do pré-sal e a ...
Ristow, João Paulo
core
水下无人系统学报To overcome the problems of excessively large array aperture and high element cost when improving angular resolution in existing two-dimensional side-scan sonar imaging methods, this paper proposed a small-size, low-cost, and high-resolution two ...
Wanchun ZHAO, Xionghou LIU, Yixin YANG
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Changes in dive behaviour during naval sonar exposure in killer whales, long-finned pilot whales, and sperm whales. [PDF]
, 2012 Anthropogenic underwater sound in the environment might potentially affect the behavior of marine mammals enough to have an impact on their reproduction and survival.
Petter Helgevold Kvadsheim +26 more
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