Sökning: "satellite navigation"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden satellite navigation.

  1. 1. Observing Sea Level Using Reflected Global Navigation Satellite System Signals

    Författare :Johan Löfgren; [2011]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; tide gauge; Global Navigation Satellite Systems; ocean tides; reflected signals; sea-level monitoring;

    Sammanfattning : Sea-level rise due to global warming is predicted to have a large impact on human society, especially for populations living in coastal regions and on islands. It is therefore of great importance to monitor the sea level and to increase the understanding of the local hydrodynamic and meteorological responses to a global sea-level rise. LÄS MER

  2. 2. Global Navigation Satellite Systems: Applications With Time Scales From Seconds to Decades

    Författare :Tong Ning; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; elevation dependent systematic effects; atmospheric integrated water vapour; Global Navigation Satellite Systems;

    Sammanfattning : Global Navigation Satellite Systems (GNSS) can be used formany applications with time scales varying from seconds to decades.For~example, due to the ability of high-rate sampling, GNSStechniques are suitable for the detection of the large co-seismicdisplacements, which are dominated by low-frequency signals andtherefore can be recorded at a few Hertz and estimated with rathersmall uncertainty (millimetres). LÄS MER

  3. 3. On Integrity Monitoring of Integrated Navigation Systems

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Jan Palmqvist; Linköpings universitet.; Linköpings universitet.; [1997]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In civil aviation a new philosophy for flight safety and traffic management is under development. The goal is to enable an expected increase in air traffic density by reducing aircraft separation. The accuracy of the position estimate determined by the navigation system in each aircraft determines this separation. LÄS MER

  4. 4. Migration strategies of raptors – spatio-temporal adaptations and constraints in travelling and foraging

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Roine Strandberg; Lunds universitet.; Lund University.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; route convergence; loop migration; mortality; spatio-temporal distribution patterns; pre- and post-migratory movements; daily travel routines; satellite tracking; fly-and-forage migration; raptors;

    Sammanfattning : Popular Abstract in Swedish Min avhandling handlar om flyttning, det vill säga hur levande organismer rör sig mellan olika områden för att utnyttja resurser, undvika födobrist och som en anpassning till klimat- och miljöfaktorer. Vi begränsar det hela till fåglar's flyttning och bland dem ska vi koncentrera os's på rovfåglar. LÄS MER

  5. 5. Sea Ice Concentration Estimation and Ice Type Classification from Dual-Frequency Satellite Synthetic Aperture Radar

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Wiebke Aldenhoff; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; sea ice concentration; sea ice; SAR imaging; sea ice classification; Fram Strait;

    Sammanfattning : The sea ice cover in the Arctic has undergone dramatic changes in recent years. The perennial sea ice extent is decreasing by 12.2 % per decade while annual mean sea ice thickness has decreased by more than 2 m for the central Arctic Basin from 1975 to 2012. LÄS MER