Sökning: "GPS"

Visar resultat 1 - 5 av 247 avhandlingar innehållade ordet GPS.

  1. 1. Undifferenced GPS for Deformation Monitoring

    Författare :Johan Vium Andersson; Lars Sjöberg; Jonas Ågren; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; : deformation monitoring; GPS; modified NGS-parameters; undifferenced GPS-observations; Kalman filter; Geoengineering; Geoteknik;

    Sammanfattning : This thesis contains the development of a deformation monitoring software based on undifferenced GPS observations. Software like this can be used in alarm systems placed in areas where the earth is unstable. LÄS MER

  2. 2. Quality description in GPS precise point positioning

    Författare :Masoud Shirazian; Lars Erick Sjöberg; Jan M. Johansson; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GPS; PPP;

    Sammanfattning : GPS processing, like every processing method for geodetic applications, relies upon least-squares estimation. Quality measures must be defined to assure that the estimates are close to reality. LÄS MER

  3. 3. GPS : superficial observations for deeper knowledge of the earth

    Författare :Sten Bergstrand; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; VLBI; local ties; GPS; rheology; mantle viscosity;

    Sammanfattning : .... LÄS MER

  4. 4. Description and Analysis of Data and Errors in GPS Meteorology

    Författare :Borys Stoew; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; atmospheric water vapor; global positioning system; propagation delay; meteorology; ensemble assimilation; GPS;

    Sammanfattning : This report presents the relation between remote sensing techniques used for estimation of atmospheric water vapor content, and numerical weather prediction. The thesis makes an overview of the methods for estimation of the zenith wet/total delay (ZWD/ZTD) for radio waves in the neutral atmosphere, and a statistical description of data in relation to the sampling problem for atmospheric water vapor. LÄS MER

  5. 5. GPS/IMU Integrated System for Land Vehicle Navigation based on MEMS

    Författare :Yueming Zhao; Lars Sjöberg; Milan Horemuž; Krzysztof Gajdamowicz; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; GPS; IMU; MEMS; integration; Kalman filter; physical constraint; outlier;

    Sammanfattning : The Global Positioning System (GPS) and an Inertial Navigation System (INS)are two basic navigation systems. Due to their complementary characters in manyaspects, a GPS/INS integrated navigation system has been a hot research topic inthe recent decade. Both advantages and disadvantages of each individual systemare analyzed. LÄS MER