Essays about: "multibeam echosounder"
Found 5 essays containing the words multibeam echosounder.
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1. Multi-Resolution Inference of Bathymetry From Sidescan Sonar
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : How to obtain complete and high-resolution bathymetry is an important research topic in the underwater domain. However, existing methods have certain shortcomings. Multibeam echosounder (MBES) can produce narrow beam range readings of the seafloor, but there is an interval between every two beams (between 10cm to 10m), and the resolution is low. READ MORE
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2. AUV SLAM constraint formation using side scan sonar
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Autonomous underwater vehicle (AUV) navigation has been a challenging problem for a long time. Navigation is challenging due to the drift present in underwater environments and the lack of precise localisation systems such as GPS. Therefore, the uncertainty of the vehicle’s pose grows with the mission’s duration. READ MORE
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3. Submap Correspondences for Bathymetric SLAM Using Deep Neural Networks
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Underwater navigation is a key technology for exploring the oceans and exploiting their resources. For autonomous underwater vehicles (AUVs) to explore the marine environment efficiently and securely, underwater simultaneous localization and mapping (SLAM) systems are often indispensable due to the lack of the global positioning system (GPS). READ MORE
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4. Glacial morphology and bathymetric mapping in Melville Bay, Western Greenland - Multibeam and backscatter mosaic
University essay from Stockholms universitet/Institutionen för geologiska vetenskaperAbstract : During the VEGA Expedition, in June 2013, reflectivity (backscatter) and depth data wasacquired with a multibeam echosounder from an approximately 140 km2 large area in MelvilleBay, off the coast of Western Greenland. One of the expedition objectives was to search for andmap evidences of a grounded ice sheet, which is likely to have reached the edge of the continentalshelf during the Last Glacial Maximum, about 20 000 years ago. READ MORE
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5. Geophysical Mapping around Björkö Island in Lake Mälaren, South central Sweden
University essay from Institutionen för geologiska vetenskaperAbstract : The former Viking settlement Birka is located on Björkö Island in Lake Mälaren, the third largest lake in Sweden. Birka is a well-known archeological site that onshore has been carefully examined. READ MORE