Browsing CMRE Publications by Issue Date

Now showing items 721-740 of 882

    • Separation of measured noise coherence matrix into Toeplitz and Hankel parts 

      Harrison, Chris H. (CMRE, 2017/08)
      The cross-spectral density of ocean ambient noise is usually estimated from the product of the complex hydrophone signals, each of which already corresponds to the summed responses of sources from all angles. The true ...

    • JANUS-based services for operationally relevant underwater applications 

      Petroccia, Roberto; Alves, João; Zappa, Giovanni (CMRE, 2017/11)
      This paper presents the design, test, and experimentation at sea of four JANUS-based services for operationally relevant underwater applications: 1) first contact and language switching; 2) transmission of automatic ...

    • A distributed ID assignment and topology discovery protocol for underwater acoustic networks 

      Petroccia, Roberto (CMRE, 2017/11)
      This paper presents a new protocol to self assign node IDs in an Underwater Acoustic Network (UAN). The proposed solution, termed DIVE for Distributed Id assignment and topology discoVEry, is fully distributed and ...

    • A data-driven control strategy in synergy with continuous active sonar for littoral underwater surveillance 

      Ferri, Gabriele; Munafó, Andrea; Alves, João; LePage, Kevin D. (CMRE, 2017/11)
      In this work, we describe a data-driven Mission Management Layer (MML) running on-board AUVs which manages the phases of a littoral surveillance mission and exploits the characteristics of Continuous Active Sonar (CAS) ...

    • Joint probabilistic data association tracker for extended target tracking applied to X-band marine radar data 

      Vivone, Gemine; Braca, Paolo (CMRE, 2017/11)
      X-band marine radar systems are flexible and low-cost tools for monitoring multiple targets in a surveillance area. Although they may suffer from several sources of interference, e.g., sea clutter, they can provide ...

    • Decision tree-based adaptive modulation for underwater acoustic communications 

      Pelekanakis, Konstantinos; Cazzanti, Luca; Zappa, Giovanni; Alves, João (CMRE, 2017/11)
      Underwater acoustic channels are characterised by non-stationary fading statistics and consequently, a modulation scheme optimally designed for a specific fading model will underperform when the channel statistics ...

    • Fostering the use of JANUS in operationally-relevant underwater applications 

      Petroccia, Roberto; Alves, João; Zappa, Giovanni (CMRE, 2017/11)
      This paper presents the use of JANUS in operationally-relevant underwater applications. JANUS is an open, simple and robust digital coding technology currently in process to become a NATO standard. Two underwater scenarios ...

    • Automated port traffic statistics: from raw data to visualization 

      Cazzanti, Luca; Davoli, Antonio; Millefiori, Leonardo (CMRE, 2017/11)
      We describe how we leveraged best practices in big data processing pipeline design and visual analytics to prototype the Maritime Patterns-of-Life Information Service (MPoLIS), an information product currently under ...

    • Multi-view SAS image classification using deep learning 

      Williams, David P.; Dugelay, Samantha (CMRE, 2017/11)
      A new approach is proposed for multi-view classification when sonar data is in the form of imagery and each object has been viewed an arbitrary number of times. An image-fusion technique is employed in conjunction with a ...

    • Supporting AUV localisation through next generation underwater acoustic networks: results from the field 

      Munafó, Andrea; Furfaro, Thomas C.; Ferri, Gabriele; Alves, João (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 ...

    • Distributed information fusion in multistatic sensor networks for underwater surveillance 

      Braca, Paolo; Goldhahn, Ryan A.; Ferri, Gabriele; LePage, Kevin D. (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 ...

    • Adaptive underwater sonar surveys in the presence of strong currents 

      Williams, David P.; Baralli, Francesco; Micheli, Michele; Vasoli, Simone (CMRE, 2017/11)
      We consider the task of conducting underwater surveys with a sonar-equipped autonomous underwater vehicle (AUV) in environments with strong currents. More specifically, this topic is addressed in the context of mine ...

    • Moving JANUS forward: a look into the future of underwater communications interoperability 

      Alves, João; Furfaro, Thomas C.; LePage, Kevin D.; Pelekanakis, Konstantinos; Petroccia, Roberto; Zappa, Giovanni (CMRE, 2017/11)
      In the past 8 years, the Centre for Maritime Research and Experimentation (CMRE) has developed, tested and promoted JANUS - a robust and simple modulation and coding scheme to be used as the first standard to support ...

    • Proceedings of the Maritime Big Data Workshop 

      Camossi, Elena; Jousselme, Anne-Laure (2019-01)
      The NATO STO Centre for Maritime Research and Experimentation, as part of its mission to put forward the technological maritime research, with the support of the European Union’s Horizon 2020 Programme has organized on ...

    • Conference Proceedings of the Decision Support and Risk Assessment for Operational Effectiveness (DeSRA) 2017 Conference 

      Vicen-Bueno, Raul; Coelho, Emanuel; Pennucci, Giuliana (NATO. STO CMRE, 2019-01)
      The Decision Support and Risk Assessment for Operational Effectiveness (DeSRA) 2017 Conference Proceedings contain the peer-reviewed abstracts accepted for this conference. The DeSRA 2017 Conference took place at the ...

    • Camelot - localization beacon system 

      Stipanov, Marin; Fioravanti, Stefano (CMRE, 2019-05)
      C2 Advanced Multi-Domain Environment And Live Observation Technologies (CAMELOT) is a H2020 project intended to develop and demonstrate different advanced command and control service modules for multiple platform domains ...

    • 2017 CMRE Annual Report 

      CMRE (CMRE, 2019-05)
      This Progress Report describes the Centre’s unclassified technical accomplishments and outputs performed under the 2017 programme of work.

    • CMRE 60th anniversary 1959 - 2019 

      CMRE (CMRE, 2019-10)
      This book has been published in recognition of the significant accomplishments achieved by the Centre of Maritime Research and Experimentation over the past 60 years. Thank you to the Centre's staff, scientists, engineers, ...

    • Weather-routing system based on METOC navigation risk assessment 

      Fabbri, Tommaso; Vicen Bueno, Raul (CMRE, 2019/05)
      This paper presents a novel weather-routing system based on a multi-criteria setup. The set of 3 conflicting criteria is: travel time, ship navigation added resistance (caused by wind and waves), and navigation risk/safety. ...

    • Doppler passive fathometry 

      Harrison, Chris H. (CMRE, 2019/05)
      Passive fathometry is a technique whereby broadband ambient ocean noise received on an array of hydrophones is averaged and cross-correlated to produce a sub-bottom profile [Siderius, Harrison, and Porter (2006). J. Acoust. ...