Browsing Articles by Issue Date

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    • Making the Milrem Themis UGV ready for autonomous operations 

      Mathiassen, Kim; Baksaas, Magnus; Aas Græe, Sindre; Mentzoni, Eilert André; Nielsen, Niels Hygum (2021-04-12)
      The usage of Unmanned Ground Vehicles (UGVs) in defence application is increasing, and much research effort is put into the field. Also, many defence vehicle producers are developing UGV platforms. However, the autonomy ...

    • Multibeam Echosounder With Orthogonal Waveforms: Feasibility and Potential Benefits 

      Blachet, Antoine; Austeng, Andreas; Aparicio, Joaquin; Hunter, Alan Joseph; Hansen, Roy Edgar (2021-04-15)
      Modern multibeam echosounders (MBE) employ frequency-division techniques (FDT) to ensonify multiple sectors within the same ping cycle. This leads to improved performance in coverage rate, and yaw and pitch stabilization. ...

    • Leveraging network-centric strategic goals in capabilities 

      Hannay, Jo Erskine; Gjørven, Eli (2021-04-19)
      The vision of network-centric operations is to increase operational capabilities through networked collaboration. NATO and its member nations state this vision in strategic documents at a very high level of abstraction. ...

    • Severity Scoring of Behavioral Responses of Sperm Whales (Physeter macrocephalus) to Novel Continuous versus Conven tional Pulsed Active Sonar 

      Curé, Charlotte; Isojunno, Saana; Siemensma, Marije; Wensveen, Paul; Buisson, celia; Sivle, Lise Doksæter; Benti, Benjamin; Roland, Rune; Kvadsheim, Petter Helgevold; Lam, Frans-Peter A.; Miller, Patrick James O. (2021-04-19)
      Controlled exposure experiments (CEEs) have demonstrated that naval pulsed active sonar (PAS) can induce costly behavioral responses in cetaceans similar to antipredator responses. New generation continuous active sonars ...

    • Modeling potential masking of echolocating sperm whales exposed to continuous 1-2 kHz naval sonar 

      von Benda-Beckmann, Alexander M.; Isojunno, Saana; Zandvliet, Maik; Ainslie, Michael A.; Wensveen, Paulus Jacobus; Tyack, Peter L.; Kvadsheim, Petter Helgevold; Lam, Frans-Peter A.; Miller, Patrick James O. (2021-04-30)
      Modern active sonar systems can (almost) continuously transmit and receive sound, which can lead to more masking of important sounds for marine mammals than conventional pulsed sonar systems transmitting at a much lower ...

    • Demonstrating Interoperability Between Unmanned Ground Systems and Command and Control Systems 

      Mathiassen, Kim; Schneider, Frank; Bounker, Paul; Tiderko, Alexander; De Cubber, Geert; Baksaas, Magnus; Glowka, Jakub; Kozik, Rafal; Nussbaumer, Thomas; Röning, Juha; Pellenz, Johannes; Volk, Andre (2021-05-25)
      This paper describes the research and experiment efforts of the NATO STO group IST-149-RTG capability concept demonstrator for interoperability within unmanned ground systems and C2 and the NAAG team of experts on UGV. ...

    • Characterization of the public transit air microbiome and resistome reveals geographical specificity 

      Leung, Michael K.H.; Tong, X.; Bøifot, Kari Oline; Bezdan, Daniela; Butler, Daniel J.; Danko, David C.; Gohli, Jostein; Green, Caroline; Hernandez, Mark T.; Kelly, Frank J.; Levy, Shawn; Mason-Buck, Gabriela; Nieto-Caballero, Marina; Syndercombe-Court, Denise; Udekwu, Klas I.; Young, Benjamin G.; Mason, Christopher E.; Dybwad, Marius; Lee, Patrick K.H. (2021-05-26)
      Background The public transit is a built environment with high occupant density across the globe, and identifying factors shaping public transit air microbiomes will help design strategies to minimize the transmission of ...

    • Laminar burning velocity of gases vented from failed Li-ion batteries 

      Henriksen, Mathias; Vaagsaether, K.; Lundberg, Joachim; Forseth, Sissel; Bjerketvedt, D. (2021-06-10)
      In the last decade, several fires and explosions caused by Li-ion batteries (LIBs) have been reported. This can be attributed to the thermal runaway and catastrophic failures of LIBs that release combustible gases, which ...

    • A global metagenomic map of urban microbiomes and antimicrobial resistance 

      Danko, David; Bezdan, Daniela; Afshin, Evan E.; Ahsanuddin, Sofia; Bhattacharya, Chandrima; Butler, Daniel J.; Chng, Kern Rei; Donnellan, Daisy; Hecht, Jochen; Jackson, Katelyn; Kuchin, Katerina; Karasikov, Mikhail; Lyons, Abigail; Mak, Lauren; Meleshko, Dmitry; Mustafa, Harun; Mutai, Beth; Neches, Russell Y.; Ng, Amanda; Nikolayeva, Olga; Nikolayeva, Tatyana; Png, Eileen; Ryon, Krista A.; Sanchez, Jorge L.; Shaaban, Heba; Sierra, Maria A.; Thomas, Dominique; Young, Ben; Abudayyeh, Omar O.; Alicea, Josue; Bhattacharyya, Malay; Blekhman, Ran; Castro-Nallar, Eduardo; Cañas, Ana M.; Chatziefthimiou, Aspassia D.; Crawford, Robert W.; De Filippis, Francesca; Deng, Youping; Desnues, Christelle; Dias-Neto, Emmanuel; Dybwad, Marius; Elhaik, Eran; Ercolini, Danilo; Frolova, Alina; Gankin, Dennis; Gootenberg, Jonathan S.; Graf, Alexandra B.; Green, Caroline; Hajirasouliha, Iman; Hastings, Jaden J.A.; Hernandez, Mark; Iraola, Gregorio; Jang, Soojin; Kahles, Andre; Kelly, Frank J.; Knights, Kaymisha; Kyrpides, Nikos; Łabaj, Paweł P.; Lee, Patrick K.H.; Leung, Marcus H.Y.; Ljungdahl, Per O.; Mason-Buck, Gabriella; McGrath, Ken; Meydan, Cem; Mongodin, Emmanuel F.; Moraes, Milton Ozorio; Nagarajan, Niranjan; Nieto-Caballero, Marina; Noushmehr, Houtan; Oliveira, Manuela; Ossowski, Stephan; Osuolale, Olayinka O.; Özcan, Orhan; Paez-Espino, David; Rascovan, Nicolás; Richard, Hugues; Rätsch, Gunnar; Schriml, Lynn M.; Semmler, Torsten; Sezerman, Osman U.; Shi, Leming; Shi, Tieliu; Siam, Rania; Song, Le Huu; Suzuki, Haruo; Court, Denise Syndercombe; Tighe, Scott W.; Tong, Xinzhao; Udekwu, Klas I.; Ugalde, Juan A.; Valentine, Brandon; Vassilev, Dimitar I.; Vayndorf, Elena M.; Velavan, Thirumalaisamy P.; Wu, Jun; Zambrano, María M.; Zhu, Jifeng; Zhu, Sibo; Mason, Christopher E. (2021-06-24)
      We present a global atlas of 4,728 metagenomic samples from mass-transit systems in 60 cities over 3 years, representing the first systematic, worldwide catalog of the urban microbial ecosystem. This atlas provides an ...

    • Formation Path Following Control of Underactuated USVs 

      Eek, Åsmund; Pettersen, Kristin Ytterstad; Ruud, Else-Line Malene; Krogstad, Thomas Røbekk (2021-06-30)
      This paper proposes a formation control method for two underactuated unmanned surface vessels (USVs) to follow curved paths in the presence of ocean currents. By uniting a line-of-sight (LOS) guidance law and the ...

    • Comparison of simulated and measured ISAR images flow of a ship at sea 

      Vignaud, Luc; Ødegaard, Nina; Ruggiero, Henri; Cochin, Christian; Louvigne, Jean Christophe; Knapskog, Atle Onar (2021-07-02)
      The aim of this work is to simulate a flow of ISAR images for a ship at sea seen from an airborne radar, in rigorously the same configuration as it has been measured by a real SAR using the recorded motion data of both ...

    • A Status Update on Quantum Safe Cryptography 

      Strand, Martin (2021-07-20)
      There is an ongoing effort to standardize asymmetric cryptography that should not be attackable by a quantum computer. The process is now into its final rounds. From 69 initial submissions from academia and industry, a ...

    • NATO Core Services profiling for Hybrid Tactical Networks -Results and Recommendations 

      Jansen, Norman; Manso, Marco; Toth, Andrew; Chan, Kevin; Bloebaum, Trude Hafsøe; Johnsen, Frank T. (2021-07-21)
      The NATO Research Task Group IST-150 "NATO Core Services profiling for Hybrid Tactical Networks" had Federated Mission Networking (FMN) as the main context and motivation for its work. IST-150 intended to investigate Core ...

    • In situ performance prediction of a coherent acoustic modem in a reverberant environment 

      Walree, Paul van; Colin, Mathieu E G D (2021-07-28)
      A channel sounding and communications experiment was performed in the Oslofjord, using eight bottom-mounted instrument units deployed in a network configuration. Five units were equipped with a software-defined 4–8-kHz ...

    • Reactive Collision Avoidance for Underactuated Surface Vehicles using the Collision Cone Concept 

      Haraldsen, Aurora; Syre Wiig, Martin; Pettersen, Kristin Ytterstad (2021-08)
      Avoiding collisions is a crucial task for autonomous systems. Many strategies for avoiding obstacles have been proposed, yet the problem of having underactuated dynamics is rarely addressed in previous studies of collision ...

    • Utilizing Zirconium MOF-functionalized fiber substrates prepared by molecular layer deposition (MLD) for toxic gas capture and chemical warfare agent degradation 

      Gorzkowska-Sobas, Agnieszka A; Lausund, Kristian Blindheim; de Koning, Martijn; Petrovic, Veljko; Chavan, Sachin Maruti; Smith, Martin W.; Nilsen, Ola (2021-09-12)
      Metal–organic frameworks (MOFs) are a class of porous organic-inorganic solids extensively explored for numerous applications owing to their catalytic activity and high surface area. In this work MOF thin films deposited in ...

    • Spectral reflectance measurements of snow and snow covered objects: experimental studies compared with mathematical models 

      Selj, Gorm Krogh; Mikkelsen, Alexander (2021-09-12)
      In this study, we have investigated reflectance spectra of different snow types under various conditions. Snow reflectance is interesting from a camouflage point of view as snow covers large land areas in many parts of the ...

    • Multimodal change monitoring using multitemporal satellite images 

      Datta, Urmila (2021-09-12)
      The main objective of this study is to monitor the land infrastructure growth over a period of time using multimodality of remote sensing satellite images. In this project unsupervised change detection analysis using ITPCA ...

    • Optimization of active sonar parameters in a measured environment 

      Hjelmervik, Karl Thomas; Dombestein, Elin Margrethe Bøhler (2021-09-13)
      ABSTRACT Sonar operation in coastal waters is challenging due to high false alarm rates and strongly varying sonar conditions. Optimal choices for sonar design and pulse characteristics depend strongly on target location ...

    • A neural network framework for binary classification of radar detections. 

      Akhtar, Jabran (2021-09-17)
      A desired objective in radar target detection is to satisfy two very contradictory requirements: offer a high probability of detection with a low false alarm rate. In this paper, we propose the utilization of artificial ...