Essays about: "multibeam"

Showing result 1 - 5 of 17 essays containing the word multibeam.

  1. 1. Multi-Resolution Inference of Bathymetry From Sidescan Sonar

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Zhengjie Ji; [2023]
    Keywords : ;

    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

  3. 2. Pixel correspondences for SLAM using sidescan sonar with canonical representations

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Weiqi Xu; [2022]
    Keywords : ;

    Abstract : Acoustic instruments play an important role in autonomous underwater vehicles (AUVs). Sidescan sonar (SSS) detects a wider range, provides photo-realistic images in high resolution, and has lower price than the multibeam echo sounder (MBES). READ MORE

  4. 3. AUV SLAM constraint formation using side scan sonar

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Marco Schouten; [2022]
    Keywords : AUV; Side Scan Sonar; Pose Estimation; SLAM; Optimisation; AUV; Side Scan Sonar; Pose Estimation; SLAM; Optimisation;

    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

  5. 4. Submap Correspondences for Bathymetric SLAM Using Deep Neural Networks

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Jiarui Tan; [2022]
    Keywords : Underwater simultaneous localization and mapping; Multibeam echosounder; Point cloud registration; Deep learning; Undervattens simultan lokalisering och kartläggning; Multibeam ekolod; Punktmolnsregistrering; Djupinlärning;

    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

  6. 5. Design of Nose-cone for Autonomous Underwater Vehicle

    University essay from Lunds universitet/Innovation

    Author : Anna Arnwald; [2021]
    Keywords : AUV; AM; 3D printing; product development; DfAM; Technology and Engineering;

    Abstract : The goal was to perform a feasibility study on an additive manufactured thermoplastic nose-cone hull design for an autonomous underwater vehicle SAM. Where feasibility includes the technical, economic and sustainable aspect in the analysis. READ MORE