Sökning: "ground-penetrating radar"

Visar resultat 1 - 5 av 43 uppsatser innehållade orden ground-penetrating radar.

  1. 1. Multi-Data Approach for Subsurface Imaging: Combining Borehole and GPR- Data for Improved Analysis

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Pontus Yngvesson; [2023]
    Nyckelord :Geofysik; Geoteknik; GPR; Borrhål; Dataanalys; Markradar;

    Sammanfattning : The investigation to understand the subsurface and its features has long been asubject of interest for various fields, including fields such as archaeology and infras-tructure projects. However, traditional excavation methods are often costly and time-consuming. LÄS MER

  3. 2. Teleoperation of an Autonomous Ground-Penetrating Radar for Non-Destructive Surveying: Design and Implementation

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Rasmus Beyer; [2023]
    Nyckelord :Autonomous; GPR; Robotics;

    Sammanfattning : A lot of features that need to be scanned underground should not be disturbed, from waterlines to unmarked graves. A non-invasive way of probing underground is Ground-Penetrating Radar (GPR). GPR finds differences in materials with radar waves. However, GPR is human-operated and its position is generally determined with a GPS. LÄS MER

  4. 3. Dynamic Path Planning, Mapping, and Navigation for Autonomous GPR Survey Robots

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Ketill Hjartarson; [2023]
    Nyckelord :Robotics; Autonomous navigation; SLAM; ROS; GPR;

    Sammanfattning : To map the subsurface Ground Penetrating Radar (GPR) can be used in a non-invasive way. It is currently done manually by pushing a wheeled device on a handlebar. This thesis suggests an alternative method using an integrated autonomous solution. LÄS MER

  5. 4. Autonomous Propulsion for a GPR-UGV

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Fredrik Wall Eskilsson; [2022]
    Nyckelord :robotics; gpr; autonomous; robot; ros; slam;

    Sammanfattning : This thesis presents the research and development behind the integration of an autonomous propulsion system for a four-wheeled Ground Penetrating Radar (GPR) measurement unit, previously requiring manual operation. In order to ease the administration of the complex new system, Robot Operating System (ROS) 2 was used as middleware, where an implementation of Light Detection And Ranging (LiDAR) 3D-SLAM (Simultaneous Localization And Mapping) served to secure precise localization of the Unmanned Ground Vehicle (UGV) and mapping of its environment. LÄS MER

  7. 5. Enhancing GPR Measurements using Real Time Kinematics and LiDAR Mapping

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Christoffer Elebro; [2022]
    Nyckelord :GPS; GNSS; RTK; Lidar; 3D-mapping;

    Sammanfattning : A Ground Penetrating Radar (GPR) is a non-invasive measurement tool to locate objects in the subsurface. The GPR transmits electromagnetic waves into the ground and records the waves reflected from surface interfaces of different materials. LÄS MER