Sökning: "Satellite sensor data"
Visar resultat 1 - 5 av 38 avhandlingar innehållade orden Satellite sensor data.
1. Analyzing Vegetation Trends with Sensor Data from Earth Observation Satellites
Sammanfattning : Abstract This thesis aims to advance the analysis of nonlinear trends in time series of vegetation data from Earth observation satellite sensors. This is accomplished by developing fast, efficient methods suitable for large volumes of data. LÄS MER
2. Spaceborne Synthetic Aperture Radar for Sea Ice Observations, Concentration and Dynamics
Sammanfattning : Spaceborne Synthetic Aperture Radar (SAR) is the primary choice for sea ice monitoring due to its all-weather, day-and-night capability and regular delivery of high resolution images. This thesis presents methods for estimation of sea ice concentration and drift, a multi-sensor study of Baltic Sea ice radar signatures and an interferometric study of landfast sea ice. LÄS MER
3. On the use of aerosol optical properties and satellite-retrieved trace gases in regional air quality modelling
Sammanfattning : The effects of anthropogenic pollutants in the lower atmosphere (troposphere) have been shown, historically and scientifically, to have a deleterious effect on both plant and animal life. Pollutants such as near-surface ozone and soot (black carbon) are two notorious examples with clear anthropogenic sources. LÄS MER
4. State estimation with auto-calibrated sensor setup
Sammanfattning : Localization and mapping is one of the key aspects of driving autonomously in unstructured environments. Often such vehicles are equipped with multiple sensor modalities to create a 360o sensing coverage and add redundancy to handle sensor dropout scenarios. LÄS MER
5. Artificial Intelligence for Monitoring and Diagnosis of Robotic Spacecraft
Sammanfattning : In this thesis the application of artificial intelligence to monitoring and diagnosis of robotic spacecraft is discussed. Several software prototype systems were developed to serve as testbeds for the research and to evaluate the effectiveness of the approach against real problems and current techniques used in NASA's planetary exploration program. LÄS MER