Sökning: "Global Positioning System GPS"
Visar resultat 1 - 5 av 44 avhandlingar innehållade orden Global Positioning System GPS.
1. Studies of Atmospheric Water Vapor Using the Global Positioning System
Sammanfattning : Atmospheric water vapor is of fundamental interest in the Global Positioning System (GPS) and Very Long Baseline Interferometry (VLBI) techniques. These techniques are based on the timing of radio waves propagating through the atmosphere. LÄS MER
2. Description and Analysis of Data and Errors in GPS Meteorology
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
3. GLONASS contributions to space geodesy
Sammanfattning : .... LÄS MER
4. A study of precise position measurements using space geodetic systems
Sammanfattning : .... LÄS MER
5. Analysis of Temporal and Spatial Variations in Atmospheric Water Vapor Using Microwave Radiometry
Sammanfattning : The amount of atmospheric water vapor is highly variable in both time and space. In this thesis some aspects of the variations in the atmospheric water vapor are treated. LÄS MER