Results 111 to 120 of about 62,673 (306)

AUV/ASC cooperative survey [PDF]

open access: yes, 2016
In this paper we describe a solution to perform autonomous surveys taking advantage of a cooperative multivehicle setup. In the proposed configuration, an ASC provides –through an USBL- absolute positioning and communications to an AUV.
Carreras, Marc   +2 more
core  

UAN. Subsurface telemetry unit (STU) [PDF]

open access: yes, 2010
SiPLAB Report 03/10, FCT, University of Algarve,2010.This document describes an underwater acoustic data acquisition system, made of a subsurface telemetry unit (STU), an underwater array of acoustic and non acoustic sensors and a cable connected base ...
Martins, C., Silva, A., Zabel, F.
core  

Cross power spectral density based beamforming for underwater acoustic communications

open access: yes, 2020
In underwater acoustic (UWA) communications, beamforming is often used to improve the detection performance of a receiver. For beamforming, there have been methods presented in time domain, e.g. fractional delay (FD) method, and in frequency domain, e.g.
Jianghui Li   +5 more
semanticscholar   +1 more source

Orbital Angular Momentum Waves: Generation, Detection and Emerging Applications

open access: yes, 2019
Orbital angular momentum (OAM) has aroused a widespread interest in many fields, especially in telecommunications due to its potential for unleashing new capacity in the severely congested spectrum of commercial communication systems.
Chen, Rui   +4 more
core   +1 more source

Optimal Scheduling and Fair Service Policy for STDMA in Underwater Networks with Acoustic Communications [PDF]

open access: gold, 2018
Miguel-Ángel Luque-Nieto   +3 more
openalex   +1 more source

Cooperative robotic networks for underwater surveillance: an overview

open access: yesIET Radar, Sonar & Navigation, 2017
Underwater surveillance has traditionally been carried out by means of surface and undersea manned vessels equipped with advanced sensor systems. This approach is often costly and manpower intensive. Marine robotics is an emerging technological area that
Gabriele Ferri*   +9 more
doaj   +1 more source

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