Roy Edgar Hansen

Bilde av Roy Edgar Hansen
English version of this page
Mobiltelefon +47-99413702
Brukernavn
Besøksadresse Gaustadalléen 23B Ole-Johan Dahls hus 0373 OSLO
Postadresse Postboks 1080 Blindern 0316 OSLO
Andre tilknytninger Institutt for informatikk

Jeg er Professor II i akustisk avbildning ved Institutt for Informatikk ved Universitetet i Oslo.

Hovedstillingen min er Sjefsforsker ved Forsvarets Forskningsinstitutt (FFI).

Faglige interesser

Mine forskningsinteresser er innen syntetisk aperture sonar, avbildning, sonar signalbehandling, array signalbehandling og statistisk signalbehandling.

Se bokkapittelet Introduction to Synthetic Aperture Sonar

Undervisning

INF4480 Digital Signalbehandling II

IN4010 Akustisk avbildning

Emneord: syntetisk aperture sonar, sonar, sonaravbildning, signalbehandling

Publikasjoner

  • Buskenes, Jo Inge; Hansen, Roy Edgar & Austeng, Andreas (2017). Low-Complexity Adaptive Sonar Imaging. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  42(1), s 87- 96 . doi: 10.1109/JOE.2016.2565038 Vis sammendrag
  • Synnes, Stig Asle Vaksvik; Hunter, Alan Joseph; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Callow, Hayden John; Van Vossen, Robbert & Austeng, Andreas (2017). Wideband synthetic aperture sonar backprojection with maximization of wave number domain support. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  42(4), s 880- 891 . doi: 10.1109/JOE.2016.2614717
  • Blomberg, Ann Elisabeth Albright; Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Pedersen, Rolf B. & Austeng, Andreas (2016). Automatic detection of marine gas seeps using an interferometric sidescan sonar. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  PP(99) . doi: 10.1109/JOE.2016.2592559
  • Ødegård, Øyvind; Sørensen, Asgeir Johan; Hansen, Roy Edgar & Ludvigsen, Martin (2016). A new method for underwater archaeological surveying using sensors and unmanned platforms. IFAC-PapersOnLine.  ISSN 2405-8963.  49(23), s 486- 493 . doi: 10.1016/j.ifacol.2016.10.453
  • Denny, Alden Ross; Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Pedersen, Rolf B. (2015). The use of synthetic aperture sonar to survey seafloor massive sulfide deposits. Journal of Ocean Technology.  ISSN 1718-3200.  10(1), s 48- 65
  • Geilhufe, Marc; Connors, Warren A.; Synnes, Stig Asle Vaksvik; Midtgaard, Øivind; Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Dugelay, Samantha (2015). Assessment of mine hunting performance evaluation parameters across multiple side-looking sonar systems and frequencies, In  OCEANS'15 MTS/IEEE Washington, Washington DC, 19-22 October, 2015.  IEEE conference proceedings.  ISBN 978-0-933957-43-5.  KAPITTEL.
  • Hansen, Roy Edgar; Lyons, Anthony P.; Sæbø, Torstein Olsmo; Callow, Hayden John & Cook, Daniel A. (2015). The Effect of Internal Wave-Related Features on Synthetic Aperture Sonar. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  40(3), s 621- 631 . doi: 10.1109/JOE.2014.2340351
  • Landmark, Knut; Solberg, Anne H Schistad; Albregtsen, Fritz; Austeng, Andreas & Hansen, Roy Edgar (2015). A Radon-Transform-Based Image Noise Filter - With Applications to Multibeam Bathymetry. IEEE Transactions on Geoscience and Remote Sensing.  ISSN 0196-2892.  53(11), s 6252- 6273 . doi: 10.1109/TGRS.2015.2436380
  • Ludvigsen, Martin; Thorsnes, Terje; Hansen, Roy Edgar; Sørensen, Asgeir Johan; Johnsen, Geir; Lågstad, Petter Arthur; Ødegård, Øyvind; Candeloro, Mauro; Nornes, Stein Melvær & Malmquist, Christian (2015). Underwater vehicles for environmental management in coastal areas, In . IEEE (ed.),  OCEANS 2015 - Genova.  IEEE conference proceedings.  ISBN 978-1-4799-8736-8.  KAPITTEL.
  • Lønmo, Tor Inge Birkenes; Austeng, Andreas & Hansen, Roy Edgar (2015). Interference rejection for sonars via low,complexity adaptive beamforming. Proceedings of the Institute of Acoustics.  ISSN 1478-6095.  37(1), s 207- 214
  • Lønmo, Tor Inge Birkenes; Austeng, Andreas & Hansen, Roy Edgar (2015). Low Complexity Adaptive Beamforming Applied to Sonar Imaging (Invited). Proceedings of 3rd International Conference and Exhibition on Underwater Acoustics.  ISSN 2408-0195. Fulltekst i vitenarkiv.
  • Øigård, Tor Arne; Hanssen, Alfred & Hansen, Roy Edgar (2015). The Multivariate Normal Inverse Gaussian distribution: EM-estimation and analysis of synthetic aperture sonar data. European Signal Processing Conference.  ISSN 2219-5491.  06-10-September-2004, s 1433- 1436
  • Geilhufe, Marc; Dugelay, Samantha; Synnes, Stig Asle Vaksvik; Sæbø, Torstein Olsmo; Midtgaard, Øivind & Hansen, Roy Edgar (2014). Comparative study of frequency dependency in high resolution sonar imagery from the MANEX'13 sea trials, In Gary Heald (ed.),  Proceedings of International Conference Synthetic Aperture Sonar and Synthetic Aperture Radar.  Institute of Acoustics.  ISBN 978-1-906913-17-5.  Artikkel.  s 191 - 200
  • Landmark, Knut; Solberg, Anne H Schistad; Austeng, Andreas & Hansen, Roy Edgar (2014). Bayesian seabed classification using angle-dependent backscatter data from multibeam echo sounders. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  39(4), s 724- 739 . doi: 10.1109/JOE.2013.2281133
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Austeng, Andreas (2014). Synthetic Aperture Sonar Tomography: A Preliminary Study, In . NN (ed.),  EUSAR 2014; 10th European Conference on Synthetic Aperture Radar; Proceedings of.  VDE Verlag GmbH.  ISBN 978-3-8007-3607-2.  352.  s 1389 - 1392
  • Blomberg, Ann Elisabeth Albright; Austeng, Andreas; Hansen, Roy Edgar & Synnes, Stig Asle Vaksvik (2013). Improving Sonar Performance in Shallow Water Using Adaptive Beamforming. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  38(2), s 297- 307 . doi: 10.1109/JOE.2012.2226643
  • Blomberg, Ann Elisabeth Albright; Nilsen, Carl-Inge Colombo; Austeng, Andreas & Hansen, Roy Edgar (2013). Adaptive sonar imaging using aperture coherence. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  38(1), s 98- 108 . doi: 10.1109/JOE.2012.2210295
  • Hansen, Roy Edgar (2013). Synthetic Aperture Sonar Technology Review. Marine Technology Society journal.  ISSN 0025-3324.  47(5), s 117- 127 . doi: 10.4031/MTSJ.47.5.5
  • Prieur, Fabrice Jean Gabriel & Hansen, Roy Edgar (2013). Theoretical Improvements When Using the Second Harmonic Signal in Acoustic Doppler Current Profilers. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  38(2), s 275- 284 . doi: 10.1109/JOE.2012.2226520
  • Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik & Hansen, Roy Edgar (2013). Wideband Interferometry in Synthetic Aperture Sonar. IEEE Transactions on Geoscience and Remote Sensing.  ISSN 0196-2892.  51(8), s 4450- 4459 . doi: 10.1109/TGRS.2013.2244900
  • Austeng, Andreas; Jensen, Are Charles; Nilsen, Carl-Inge Colombo; Callow, Hayden John & Hansen, Roy Edgar (2012). Use of the Minimum Variance Beamformer in SAS Imaging, In  11th European Conference on Underwater Acoustics 2012 (ECUA 2012).  Curran Associates, Inc..  ISBN 978-1-62276-192-0.  Vol 2.  s 1908 - 1915
  • Blomberg, Ann Elisabeth Albright; Austeng, Andreas & Hansen, Roy Edgar (2012). Adaptive beamforming applied to a cylindrical sonar array using an interpolated array transformation. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  37(1), s 25- 34 . doi: 10.1109/JOE.2011.2169611
  • Blomberg, Ann Elisabeth Albright; Nilsen, Carl-Inge Colombo; Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Austeng, Andreas (2012). Detecting and Localizing Gas Seeps at the Seafloor Using an Interferometric Sidescan Sonar, In  11th European Conference on Underwater Acoustics 2012 (ECUA 2012).  Curran Associates, Inc..  ISBN 978-1-62276-192-0.  Vol 1.  s 597 - 604
  • Callow, Hayden John; Hagen, Per Espen; Hansen, Roy Edgar; Sæbø, Torstein Olsmo & Pedersen, Rolf B. (2012). A new approach to high-resolution seafloor mapping. Journal of Ocean Technology.  ISSN 1718-3200.  7(2), s 13- 22
  • Landmark, Knut; Solberg, Anne H Schistad; Nilsen, Carl-Inge Colombo; Austeng, Andreas & Hansen, Roy Edgar (2012). Bayesian Seabed Classification Using Angle-Dependent Backscatter Data from Multibeam Sonar, In  11th European Conference on Underwater Acoustics 2012 (ECUA 2012).  Curran Associates, Inc..  ISBN 978-1-62276-192-0.  Vol 1.  s 417 - 424
  • Hagen, Per Espen & Hansen, Roy Edgar (2011). Synthetic aperture sonar on AUV: Making the right trade-offs. The Journal of Ocean Technology.  ISSN 1718-3200.  6(2), s 17- 22
  • Hansen, Roy Edgar (2011). Introduction to Synthetic Aperture Sonar, In Nikolai Kolev (ed.),  Sonar Systems.  INTECH.  ISBN 978-953-307-345-3.  1.  s 3 - 28
  • Hansen, Roy Edgar; Callow, Hayden John; Sæbø, Torstein Olsmo & Synnes, Stig Asle Vaksvik (2011). Challenges in Seafloor Imaging and Mapping With Synthetic Aperture Sonar. IEEE Transactions on Geoscience and Remote Sensing.  ISSN 0196-2892.  49(10), s 3677- 3687 . doi: 10.1109/TGRS.2011.2155071
  • Blomberg, Ann Elisabeth Albright; Austeng, Andreas; Hansen, Roy Edgar & Holm, Sverre (2009). Minimum Variance Adaptive Beamforming Applied to a Circular Sonar Array, In John S. Papadakis & Leif Bjørnø (ed.),  Proceedings of the 3rd International Conference & Exhibition on Underwater Acoustic Measurements: Technologies and Results.  Foundation for Research & Technology.  ISBN 978-960-98883-0-1.  artikkel.  s 1361 - 1366
  • Groen, Johannes; Hansen, Roy Edgar; Callow, Hayden John; Sabel, JC & Sæbø, Torstein Olsmo (2009). Shadow Enhancement in Synthetic Aperture Sonar Using Fixed Focusing. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  34(3), s 269- 284 . doi: 10.1109/JOE.2008.920996 Vis sammendrag
  • Jetlund, Safiye Emilie Dursun; Austeng, Andreas; Hansen, Roy Edgar & Holm, Sverre (2009). Minimum variance adaptive beamforming in active sonar imaging, In John S. Papadakis & Leif Bjørnø (ed.),  Proceedings of the 3rd International Conference & Exhibition on Underwater Acoustic Measurements: Technologies and Results.  Foundation for Research & Technology.  ISBN 978-960-98883-0-1.  Artikkel.  s 1373 - 1378
  • Olsmo Sæbø, Torstein; Hansen, Roy E. & Hanssen, Alfred (2007). Relative Height Estimation by Cross-correlating Ground Range Synthetic Aperture Sonar Images. IEEE Journal of Oceanic Engineering.  ISSN 0364-9059.  32(4), s 971- 982 . doi: 10.1109/JOE.2007.895244 Vis sammendrag

Se alle arbeider i Cristin

  • Austeng, Andreas; Rodriguez-Molares, Alfonso & Hansen, Roy Edgar (2017). Performance of coherence based adaptive sonar beamformers.
  • Blachet, Antoine; Lønmo, Tor Inge Birkenes; Austeng, Andreas; Prieur, Fabrice Jean Gabriel; Hunter, Alan, J & Hansen, Roy Edgar (2017). SONAR DATA SIMULATION WITH APPLICATION TO MULTIBEAM ECHO SOUNDERS.
  • Geilhufe, Marc; Voss, Hauke; Hansen, Roy Edgar; Midtgaard, Øivind; Synnes, Stig Asle Vaksvik & Sæbø, Torstein Olsmo (2017). Towards automated HF sidescan sonar performance estimation.
  • Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik; Lorentzen, Ole J. & Sæbø, Torstein Olsmo (2017). Synthetic Aperture Sonar Interferometry Mapping of the Seabed.
  • Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Lorentzen, Ole J. & Synnes, Stig Asle Vaksvik (2017). Mapping unexploded ordnance (UXO) using interferometric synthetic aperture sonar.
  • Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik & Lorentzen, Ole J. (2017). Synthetic aperture sonar interferometry for detailed seabed mapping: Performance considerations.
  • Lorentzen, Ole J.; Synnes, Stig Asle Vaksvik; Hansen, Roy Edgar; Sæbø, Torstein Olsmo & Geilhufe, Marc (2017). Local probability-based phase unwrapping for synthetic aperture sonar interferometry.
  • Lyons, Anthony P.; Hansen, Roy Edgar; Prater, James; Connors, Warren A.; Rice, Glen & Pailhas, Yan (2017). Internal wave effects on seafloor imagery and bathymetry estimates.
  • Lønmo, Tor Inge Birkenes; Austeng, Andreas & Hansen, Roy Edgar (2017). Phase Detections with Low Complexity Adaptive Beamforming on Swath Sonars.
  • Myers, Vincent; Quidu, I.; Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Zerr, Benoit (2017). Computing navigation corrections for co-registration of repeat-pass synthetic aperture sonar images.
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik & Lorentzen, Ole J. (2017). Depth estimation of water column objects using interferometric synthetic aperture sonar.
  • Hansen, Roy Edgar; Geilhufe, Marc; Synnes, Stig Asle Vaksvik; Midtgaard, Øivind & Sæbø, Torstein Olsmo (2016). In-situ performance assessment for high frequency seabed imaging sidescan sonar.
  • Hansen, Roy Edgar; Lyons, Anthony P.; Cook, Daniel A. & Sæbø, Torstein Olsmo (2016). Detection of Internal Waves Using Multi-Aspect Processing in Synthetic Aperture Sonar.
  • Lyons, Anthony P.; Olson, Derek R. & Hansen, Roy Edgar (2016). Quantifying the effect of random seafloor roughness on high-frequency synthetic aperture sonar image statistics.
  • Synnes, Stig Asle Vaksvik; Sæbø, Torstein Olsmo & Hansen, Roy Edgar (2016). Interferometry using phase slope estimation.
  • Ludvigsen, Martin; Thorsnes, Terje; Hansen, Roy Edgar; Sørensen, Asgeir Johan; Johnsen, Geir; Lågstad, Petter Arthur; Ødegaard, Øyvind Tangen; Candeloro, Mauro; Nornes, Stein Melvær & Malmquist, Christian (2015). Underwater vehicles for environmental management in coastal areas.
  • Synnes, Stig Asle Vaksvik & Hansen, Roy Edgar (2015). Aspect-dependent scattering in widebeam synthetic aperture sonar.
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Lorentzen, Ole J. (2015). Using an interferometric synthetic aperture sonar to inspect the Skagerrak World War II chemical munitions dump site.
  • Blomberg, Ann Elisabeth Albright; Austeng, Andreas; Hansen, Roy Edgar & Pedersen, Rolf B. (2014). Alternative SAS processing for gas seep detection.
  • Callow, Hayden John; Hagen, Per Espen & Hansen, Roy Edgar (2014). Operating frequency trade-offs in the design of high resolution synthetic aperture sonars for small platforms.
  • Denny, Alden Ross; Pedersen, Rolf B. & Hansen, Roy Edgar (2014). High-resolution imaging of seafloor hydrothermal systems using synthetic aperture sonar. Vis sammendrag
  • Denny, Alden Ross; Pedersen, Rolf B. & Hansen, Roy Edgar (2014). Techniques for importing and visualizing HiSAS cm-scale bathymetry.
  • Denny, Alden Ross; Pedersen, Rolf B.; Hansen, Roy Edgar & Sæbø, Torstein Olsmo (2014). Synthetic aperture sonar imaging of shallow hydrothermal systems on the northern Kolbeinsey Ridge.
  • Geilhufe, Marc; Dugelay, Samantha; Synnes, Stig Asle Vaksvik; Sæbø, Torstein Olsmo; Midtgaard, Øivind & Hansen, Roy Edgar (2014). Comparative study of frequency dependency in high resolution sonar imagery from the MANEX'13 sea trials.
  • Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Lorentzen, Ole J. & Midtgaard, Øivind (2014). Change detection in topographic structures using interferometric synthetic aperture sonar.
  • Midtgaard, Øivind; Alm, Ivar; Sæbø, Torstein Olsmo; Geilhufe, Marc & Hansen, Roy Edgar (2014). Performance assessment tool for AUV based mine hunting.
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Austeng, Andreas (2014). Synthetic Aperture Sonar Tomography: A Preliminary Study.
  • Austeng, Andreas; Blomberg, Ann Elisabeth Albright & Hansen, Roy Edgar (2013). Aperture Coherence in Active Sonar Image Enhancement: A Review.
  • Austeng, Andreas; Callow, Hayden John; Larsen, yngvar & Hansen, Roy Edgar (2013). Speckle Reduction in Synthetic Aperture Sonar Images Using Thomson’s Multitaper Approach.
  • Hansen, Roy Edgar & Sæbø, Torstein Olsmo (2013). Towards automated performance assessment in synthetic aperture sonar.
  • Lyons, Anthony P.; Hansen, Roy Edgar; Sæbø, Torstein Olsmo & Callow, Hayden John (2013). Refractive Effects of Internal Waves on Synthetic Aperture Sonar Images.
  • Lyons, Anthony P.; Hansen, Roy Edgar; Sæbø, Torstein Olsmo & Callow, Hayden John (2013). Synthetic aperture sonar imaging of breaking internal wave structures.
  • Myers, Vincent; Quidu, I.; Sæbø, Torstein Olsmo & Hansen, Roy Edgar (2013). Results and Analysis of Coherent Change Detection Experiments Using Repeat-Pass Synthetic Aperture Sonar Images.
  • Synnes, Stig Asle Vaksvik & Hansen, Roy Edgar (2013). Ultra wideband SAS imaging.
  • Quidu, Isabelle; Myers, Vincent; Midtgaard, Øivind & Hansen, Roy Edgar (2012). Subpixel image registration for coherent change detection between two high resolution sonar passes.
  • Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik & Hansen, Roy Edgar (2012). Wideband Interferometry in Synthetic Aperture Sonar.
  • Blomberg, Ann Elisabeth Albright; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik & Austeng, Andreas (2011). Improved interferometric sonar performance in shallow water using adaptive beamforming.
  • Callow, Hayden John; Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Synnes, Stig Asle Vaksvik (2011). SAS beamforming through a vertical sound speed profile.
  • Groen, Johannes; Pecoraro, Gaetano; Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Martorella, Marco & Fox, Warren (2011). Motion compensation for interferometric sas with arrays of unequal length.
  • Midtgaard, Øivind; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Myers, Vincent; John R, Dubberley & Isabelle, Quidu (2011). Change Detection Using Synthetic Aperture Sonar: Preliminary Results from the Larvik Trial.
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Callow, Hayden John & Synnes, Stig Asle Vaksvik (2011). Coregistration of synthetic aperture sonar images from repeated passes.
  • Austeng, Andreas; Jensen, Are Fritz Charles; jetlund, safiye; Hansen, Roy Edgar & Holm, Sverre (2010). Adaptive beamforming in active sonar imaging.
  • Callow, Hayden John; Synnes, Stig Asle Vaksvik; Sæbø, Torstein Olsmo & Hansen, Roy Edgar (2010). Autofocus for Circular Synthetic Aperture Imaging. Vis sammendrag
  • Hagen, Per Espen; Fossum, Terje Gunnar; Callow, Hayden John; Hansen, Roy Edgar & Choi, Joong-Lak (2010). Synthetic Aperture Sonar Operation in Challenging Environments : Experiences from HUGIN 1000 Operations around the World. Vis sammendrag
  • Hansen, Roy Edgar; Callow, Hayden John; Sæbø, Torstein Olsmo & Synnes, Stig Asle Vaksvik (2010). Challenges in Seafloor Imaging and Mapping with Synthetic Aperture Sonar. Vis sammendrag
  • Hansen, Roy Edgar; Callow, Hayden John; Sæbø, Torstein Olsmo & Synnes, Stig Asle Vaksvik (2010). Robust synthetic aperture sonar for autonomous underwater vehicles. Vis sammendrag
  • Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Callow, Hayden John & Hagen, Per Espen (2010). Interferometric Synthetic Aperture Sonar in Pipeline Inspection. Vis sammendrag
  • Synnes, Stig Asle Vaksvik; Callow, Hayden John; Hansen, Roy Edgar & Sæbø, Torstein Olsmo (2010). Multipass coherent processing on synthetic aperture sonar data. Vis sammendrag
  • Sæbø, Torstein Olsmo & Hansen, Roy Edgar (2010). Comparison between Interferometric SAS and Interferometric SAR. Vis sammendrag
  • Callow, Hayden John; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik & Sæbø, Torstein Olsmo (2009). Circular SAS without a beacon.
  • Hagen, Per Espen & Hansen, Roy Edgar (2009). Operational experience with HUGIN 1000-MR and HISAS 1030.
  • Hansen, Roy Edgar; Callow, Hayden John; Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik; Hagen, Per Espen; Fossum, Terje Gunnar & Langli, Bjørnar (2009). Synthetic aperture sonar in challenging environments: Results from the HISAS 1030.
  • Hansen, Roy Edgar; Hagen, Per Espen & Telle, Helge S. (2009). Synthetic aperture sonar: a tool in underwater archaeology.
  • Midtgaard, Øivind; Sæbø, Torstein Olsmo & Hansen, Roy Edgar (2009). Estimation of detection/classification performance using interferometric sonar coherence.
  • Synnes, Stig Asle Vaksvik; Hansen, Roy Edgar & Sæbø, Torstein Olsmo (2009). Assessment of shallow water performance using interferometric sonar coherence.
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Midtgaard, Øivind (2009). Filtering of high resolution interferometric synthetic aperture sonar data.
  • Callow, Hayden John; Sæbø, Torstein Olsmo & Hansen, Roy Edgar (2008). Autofocus of synthetic aperture sonar data using the phase adjustment by contrast enhancement algorithm.
  • Fossum, Terje Gunnar; Hagen, Per Espen; Langli, Bjørnar & Hansen, Roy Edgar (2008). HISAS 1030: High resolution synthetic aperture sonar with bathymetric capabilities.
  • Fossum, Terje Gunnar; Sæbø, Torstein Olsmo; Langli, Bjørnar; Callow, Hayden John & Hansen, Roy Edgar (2008). HISAS 1030 - High resolution interferometric synthetic aperture sonar.
  • Hagen, Per Espen; Fossum, Terje Gunnar & Hansen, Roy Edgar (2008). Applications of AUVs with SAS.
  • Hagen, Per Espen; Fossum, Terje Gunnar & Hansen, Roy Edgar (2008). HISAS 1030: The Next Generation Mine Hunting Sonar for AUVs.
  • Hagen, Per Espen & Hansen, Roy Edgar (2008). Synthetic aperture sonar challenges. Hydro International.  ISSN 1385-4569.  12(4), s 26- 31
  • Hansen, Roy Edgar; Callow, Hayden John; Sæbø, Torstein Olsmo; Hagen, Per Espen & Langli, Bjørnar (2008). High fidelity synthetic aperture sonar products for target analysis.
  • Hansen, Roy Edgar; Sæbø, Torstein Olsmo & Callow, Hayden John (2008). Circular synthetic aperture sonar results from autonomous underwater vehicle trials.
  • Sæbø, Torstein Olsmo; Hansen, Roy Edgar & Callow, Hayden John (2008). Multifrequency interferometry on synthetic aperture sonar images.
  • Callow, Hayden John; Groen, Johannes; Hansen, Roy Edgar & Sparr, Trygve (2007). Shadow enhancement in SAR imagery.
  • Groen, Johannes; Hansen, Roy Edgar; Myers, Vincent; Callow, Hayden John & Pinto, Marc A (2007). Measurements on shadow contour estimation accuracy in synthetic aperture sonar images.
  • Hagen, Per Espen & Hansen, Roy Edgar (2007). Area coverage rate for Synthetic Aperture Sonars.

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Publisert 4. nov. 2010 13:56 - Sist endret 31. juli 2017 15:37

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