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Cooperation and networking in an underwater network composed by heterogeneous assets
(CMRE, 2019/06)
Underwater communication and robot technologies have grown rapidly in the last decade. Systems made of underwater unmanned vehicles have moved from single vehicle deployments to systems comprising teams of assets. As of ...
Optimum sampling designs for a glider-mooring observing network
(CMRE, 2014/01)
Ocean observing systems (OOSs) constituted by moorings and gliders are becoming relevant in oceanographic and climate studies. In these observing networks, the temporal variability is captured by mooring observations, while ...
Environmental field estimation by consensus based dynamic sensor networks and underwater gliders
(CMRE, 2019/06)
A coordinated dynamic sensor network of autonomous underwater gliders to estimate 3D time-varying environmental fields is proposed and tested. Each sensor performs local Kalman filter sequential field estimation. A network ...
Dynamic placement of a constellation of surface buoys for enhanced underwater positioning
(CMRE, 2019/06)
This paper addresses the challenge of dynamically adapting the location of the nodes in an acoustic network to optimise the localisation performance of Autonomous Underwater Vehicles (AUVs) operating in the area. A dynamic ...
A relocatable EnKF ocean data assimilation tool for heterogeneous observational networks
(CMRE, 2019/06)
This study investigates the performance of a multivariate Ensemble Kalman Filter coupled with a relocatable limited-area configuration of the Regional Ocean Modeling System to predict ocean states by assimilating a ...
Ambiguity reduction of underwater targets in framework of topic modeling
(CMRE, 2019/06)
An unsupervised track classification approach based on appropriate discriminative and aggregative features derived from beamformed and normalized matched-filtered data is applied to sonar multistatic tracking and extended ...
Supporting AUV localisation through next generation underwater acoustic networks: results from the field
(CMRE, 2017/11)
This work describes how the localisation of autonomous underwater vehicles can be supported through net-worked acoustic communication. The localisation approach in-cludes timing information within acoustic messages to ...
AUV active perception: exploiting the water column
(CMRE, 2019/06)
Autonomous Underwater Vehicles (AUVs) present a low-cost alternative or supplement to existing underwater surveillance networks. The NATO STO Centre for Maritime Research and Experimentation is developing collaborative ...
Distributed information fusion in multistatic sensor networks for underwater surveillance
(CMRE, 2017/11)
Surveillance in antisubmarine warfare has traditionally been carried out by means of submarines or frigates with towed arrays. These techniques are manpower intensive. Alternative approaches have recently been suggested ...
Multisensor adaptive Bayesian tracking under time-varying target detection probability
(CMRE, 2019/06)
In practical tracking applications, the target detection performance may be unknown and also change rapidly in time. This work considers a network of sensors and develops a target-tracking procedure able to adapt and react ...