• Login
    Search 
    •   FFI Publications Home
    • Publications
    • Search
    •   FFI Publications Home
    • Publications
    • Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Search

    Show Advanced FiltersHide Advanced Filters

    Filters

    Use filters to refine the search results.

    Now showing items 1-10 of 24

    • Sort Options:
    • Relevance
    • Title Asc
    • Title Desc
    • Issue Date Asc
    • Issue Date Desc
    • Results Per Page:
    • 5
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100

    A new method for underwater archaeological surveying using sensors and unmanned platforms 

    Ødegård, Øyvind; Sørensen, Asgeir Johan; Hansen, Roy Edgar; Ludvigsen, Martin (2016)
    As most of the world’s oceans are inaccessible to diving archaeologists, we must rely on advanced underwater technology and marine robotics to explore, map and investigate ship wrecks in these areas. New sensors and unmanned ...

    The Multivariate Normal Inverse Gaussian distribution: EM-estimation and analysis of synthetic aperture sonar data 

    Øigård, Tor Arne; Hanssen, Alfred; Hansen, Roy Edgar (2015)
    The heavy-tailed Multivariate Normal Inverse Gaussian (MNIG) distribution is a recent variance-mean mixture of a multivariate Gaussian with a univariate inverse Gaussian distribution. Due to the complexity of the ...

    Bayesian seabed classification using angle-dependent backscatter data from multibeam echo sounders 

    Landmark, Knut; Solberg, Anne H Schistad; Austeng, Andreas; Hansen, Roy Edgar (2014)
    Acoustical seabed classification is a technology for mapping seabed sediments. Processed multibeam sonar data yield the variation of the seabed scattering strength with incidence angle, and this paper examines the effect ...

    Wideband Synthetic Aperture Sonar Back Projection with Maximization of Wave Number Domain Support 

    Synnes, Stig Asle Vaksvik; Hunter, Alan Joseph; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Callow, Hayden John; Van Vossen, Robbert; Austeng, Andreas (2017)
    Wideband and widebeam synthetic aperture sonar (SAS) can provide information on the frequency- and aspect-dependent scattering in a scene. We suggest an approach to predict the quality of the sensor data over the available ...

    Challenges in Seafloor Imaging and Mapping With Synthetic Aperture Sonar 

    Hansen, Roy Edgar; Callow, Hayden John; Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik (2011)
    Synthetic aperture sonar (SAS) is emerging as an imaging technology that can provide centimeter resolution over hundreds-of-meter range on the seafloor. Although the principle of SAS has been known for more than 30 years, ...

    The use of synthetic aperture sonar to survey seafloor massive sulfide deposits 

    Denny, Alden Ross; Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Pedersen, Rolf B. (2015)
    With the advent of advanced deep sea mining technology, seafloor mining is poised to begin on a global scale. For the success of any mining operation, it is crucial that both the operators and regulatory bodies possess ...

    Interference rejection for sonars via low,complexity adaptive beamforming 

    Lønmo, Tor Inge Birkenes; Austeng, Andreas; Hansen, Roy Edgar (2015)

    The Effect of Internal Wave-Related Features on Synthetic Aperture Sonar 

    Hansen, Roy Edgar; Lyons, Anthony P.; Sæbø, Torstein Olsmo; Callow, Hayden John; Cook, Daniel A. (2015)
    In October 2012, the Centre for Maritime Research and Experimentation (CMRE, La Spezia, Italy) conducted trials from the NATO research vessel (RV) Alliance, off Elba Island, Italy. During this trial, data were collected ...

    A Radon-Transform-Based Image Noise Filter - With Applications to Multibeam Bathymetry 

    Landmark, Knut; Solberg, Anne H Schistad; Albregtsen, Fritz; Austeng, Andreas; Hansen, Roy Edgar (2015)
    This paper describes a linear-image-transform-based algorithm for reducing stripe noise, track line artifacts, and motion-induced errors in remote sensing data. Developed for multibeam bathymetry (MB), the method has also ...

    Automatic detection of marine gas seeps using an interferometric sidescan sonar 

    Blomberg, Ann Elisabeth Albright; Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Pedersen, Rolf B.; Austeng, Andreas (2016)
    There is a significant need for reliable, cost-effective, and preferably automatic methods for detecting and monitoring marine gas seeps. Seeps at the seafloor may originate from natural sources including sediments releasing ...
    • 1
    • 2
    • 3

    Browse

    All of FFI PublicationsCommunities & CollectionsBy Issue DateAuthorsTitlesThis CommunityBy Issue DateAuthorsTitles

    My Account

    Login

    Discover

    Author
    Hansen, Roy Edgar (24)
    Sæbø, Torstein Olsmo (12)Austeng, Andreas (9)Callow, Hayden John (5)Synnes, Stig Asle Vaksvik (5)Hunter, Alan Joseph (3)Lyons, Anthony P. (3)Pedersen, Rolf B. (3)Cook, Daniel A. (2)Geilhufe, Marc (2)... View MoreDate Issued2020 - 2022 (8)2010 - 2019 (16)

    CONTACT US

    • FFI Kjeller
      FFI, PO Box 25, 2027 Kjeller
    • Office Address: Instituttvn 20,
      Phone 63 80 70 00
    • biblioteket@ffi.no

    HELPFUL

    • About FFI
    • Career
    • Reports

    Sitemap

    • About cookies (cookies)
    • Newsletter
    • Sitemap

    FOLLOW US

     

     

    © Copyright Norwegian Defence Research Establishment
    Powered by KnowledgeArc