Sökning: "Satellitpositionering"

Visar resultat 6 - 10 av 80 uppsatser innehållade ordet Satellitpositionering.

  1. 6. A Comparison of Smartphone GPSL1 and Galileo E1-B/C Spoofing Resilience

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

    Författare :Torbjörn Leksell; [2021]
    Nyckelord :GNSS; Spoofing; GPS; Galileo; Smartphone; GPU; Signal Simulation; GNSS; Förfalskning; GPS; Galileo; Smarttelefon; GPU; Signalsimulator;

    Sammanfattning : Location-based services have grown in importance as smartphones, and location-based applications have become an integral part of everyday life. While Global Navigation Satellite Systems (GNSSs) provide the most accurate position determination, open service GNSS signals remain unprotected and susceptible to spoofing attacks. LÄS MER

  3. 7. GNSS undersökning : För bättre precision i smartphones

    Kandidat-uppsats, Mittuniversitetet/Institutionen för informationssystem och –teknologi

    Författare :Elias Fredin; [2019]
    Nyckelord :Trilateration; Pseudorange; Satellites; Java; Android; Server; Ephemeris; GALILEO; GPS; Satellite Positioning; Trilateration; Pseudorange; Satelliter; Java; Android; Server; Ephemeris; GALILEO; GPS; Satellitpositionering;

    Sammanfattning : To be able to receive a position from a smartphone user is very valuable. Wit- hout this many applications would not work at all. For many applications the existing position libraries are not good enough, for example augmented reality applications which requires millimeter precision for a good experience. LÄS MER

  4. 8. Visualization of 3D Real Properties in Sweden

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Alice Hugosson; [2019]
    Nyckelord :3D real property; RRR; 3D cadaster; cadastral dossier; standardization; 3D-fastighet; 3D registerkarta; förrättningsakt; standardisering;

    Sammanfattning : It is a high demand of land in the society today, especially in urbanized areas. Values of land are increasing, and the cities get more complex constructions and relations between ownership.Since the 1st of January 2004 it is possible to form real properties that are limited both horizontally and vertically. LÄS MER

  5. 9. Automatic Generation of Levels of Detail : A Study on the Swedish National Road Database

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Alexandra Börjesson; [2019]
    Nyckelord :Cartographic generalisation; transport network; database; levels of detail; geographic information system; GIS; FME; Kartografisk generalisering; vägnät; databas; detaljnivå; geografiska informationssystem; GIS; FME;

    Sammanfattning : When creating a map, the amount of data and which geographical information chosen to bepresented are decided based on the purpose of the map. Trafikverket is responsible for theNational Road Database that is a reference road network with a large amount of dataconnected to it. LÄS MER

  7. 10. Automatic Detection of Low Passability Terrain Features in the Scandinavian Mountains

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Fredrik Ahnlén; [2019]
    Nyckelord :Classification; Fuzzy Logic; Fuzzy Inference System; Automatic Mapping; Terrain Features; Land Cover Mapping; Cartography; Shrub; Mire; Stony Ground; Klassificering; Fuzzy Logic; Fuzzy Inference System; Automatisk Kartering; Terrängföremål; Marktäcke; Kartografi; Videsnår; Sankmark; Stenig Mark;

    Sammanfattning : During recent years, much focus have been put on replacing time consuming manual mappingand classification tasks with automatic methods, having minimal human interaction. Now it ispossible to quickly classify land cover and terrain features covering large areas to a digital formatand with a high accuracy. LÄS MER