Sökning: "Satellitpositionering"

Visar resultat 1 - 5 av 80 uppsatser innehållade ordet Satellitpositionering.

  1. 1. Robotics Approach in Mobile Laser Scanning : Generation of Georeferenced Point-based Forest Models

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Tamas Faitli; [2023]
    Nyckelord :mobile laser scanning; rotating lidar; slam; real-time positioning; georeferencing; state estimation; lidar odometry; point-based forest model; forest harvester; forestry; mobil laserskanning; roterande lidar; slam; realtidspositionering; georeferens; tillståndsuppskattning; lidarodometri; punktbaserad skogsmodell; skogsskördare; skogsbruk;

    Sammanfattning : A mobile laser scanning (MLS) system equipped with a lidar, inertial navigation system and satellite positioning can be used to reconstruct georeferenced point-based models of the surveyed environments. Ideal reconstruction requires accurate trajectories that are challenging to obtain in forests. LÄS MER

  3. 2. Automatic Point Cloud Modelling for BIM in AEC Sector

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Mohamed Salih Abaker Ishag; [2022]
    Nyckelord :Point cloud; Laser scanning; BIM; Automatic modeling; Clash analysis; Punktmoln; Laserskanning; BIM; Automatisk modellering; Krockanalys;

    Sammanfattning : In this research, automatic point cloud modeling strategies have been tested to find the best strategies to model walls, floors and ceilings classes in terms of processing time and accuracy. The modeling was applied on a point cloud data related to the Architecture, Engineering, and Construction field which is a point cloud of a building collected by Sweco company in Sweden. LÄS MER

  4. 3. Indoor 5G Positioning using Multipath Measurements

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Andreas Lidström; Martin Andersson; [2022]
    Nyckelord :Multipath Propagation; 5G Networks; Target Tracking; Sensor Fusion; Positioning; Particle Filter; Kalman Filter;

    Sammanfattning : Positioning with high precision and reliability is considered as an important feature of new wireless radio networks such as 5G. In areas where satellite positioning is not available or is not reliable enough, 5G can work as an alternative. An example is inside factories where autonomous vehicles might need to be positioned in complex environments. LÄS MER

  5. 4. Analysis of Modelling 3D Bedrock Surfaces using Interpolation Methods : A Comparison between Models of 3D Bedrock Surfaces using Different Interpolation Methods

    M1-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Mario Marrugat Rodríguez; [2022]
    Nyckelord :GEOBIM; 3D-ytor; Civil 3D; ArcGIS; Berggrund; Osäkerheter;

    Sammanfattning : Geological and geotechnical studies are a critical component of most projects, and it has a significant impact on the economy, project timelines, and subsequent project design. Today, the development of GEOBIM eases this analysis, thus saving costs, speeding up processes and avoiding risks. LÄS MER

  7. 5. Workflow from point cloud to BIM

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Alexandra Kaliakouda; [2021]
    Nyckelord :Laser scanning; point cloud; BIM; BIM software; Laserskanning; punktmoln; BIM; BIM-programvara;

    Sammanfattning : The title of this thesis is 'Workflow from point cloud to BIM'. Thus, an attempt is made to present and analyse all the steps followed in such a process. The building used as a case study is U-Building which is located at KTH campus. Briefly, a report is made on the various methods of mapping existing buildings. LÄS MER