Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"radar remote sensing"”.
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Optical and radar remote sensing of land use and land cover change in the tropics: An assessment of deforestation and secondary vegetation
… net carbon flux due to tropical land use. While remote sensing applications can provide estimates of the rates of deforestation and the fate of the cleared land (pasture, croplands, or secondary vegetation), techniques for estimating persistence, rates of succession, and biomass of secondary …
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The planning of a South African airborne synthetic aperture radar measuring campaign
… for a South African Airborne Synthetic Aperture Radar (SAR) measuring campaign envisaged for 1994/5. At present both airborne and spaceborne SARs have found a niche in remote sensing with applications in subsurface mapping, surface moisture mapping, vegetation mapping, rock type discrimination …
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Laboratory Electrical DC Resistivity of Serpentinite, Graphite, Oxide and Sulfide Minerals
Radar remote sensing and Ground Penetrating Radar (GPR) are effective techniques for geological subsurface investigations. Planetary missions, such as Apollo-17 and Change-3, have used GPR as a tool for investigating the Earths moon surface. Electrical DC resistivity of chalcopyrite, galena, …
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Development of a real time radar acquisition system
The Geosonde radar system, developed for use in bore holes, includes a data acquisition system. Development is currently being conducted by the Radar Remote Sensing Group at the University of Cape Town and Stellenbosch University. This thesis describes the development of a real time operating …
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Measuring tropical forest disturbance and regrowth with spaceborne lidar
… their impact using traditional optical and radar remote sensing. As a result, there is wide scientific uncertainty about the scale and trajectory of tropical forest loss and gain, and forest degradation is rarely incorporated into international conservation commitments or land use change …
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SVALPEN Svalbard Radar Snow Penetration Experiment
… of ice is well studied using satellite-based radar remote sensing, thickness estimates are not achieving satisfactory accuracies required to produce high-quality remote sensing products. Main driver of this uncertainty is the lack of understanding of radar signal penetration into snow …
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The potential of airborne polarimetric synthetic aperture radar data for quantifying and mapping the biomass and structural diversity of woodlands in semi-arid Australia.
… proportion of the national total emissions. Radar remote sensing has demonstrated considerable potential in the estimation and mapping of vegetation biomass and subsequently carbon. The aim of this research is to investigate the potential of airborne polarimetric radar for quantifying and …
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The design and implementation of a radar simulator
… describes the design and implementation of a radar simulator called Sarsim2. The radar simulator was originally developed to produce synthetic range profiles (SRPs) of complex aircraft models. It was then expanded and upgraded to generate simulated synthetic aperture radar (SAR) data. Over the …
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The flow and fracture of Antarctic Ice Shelves
… into its flow and fracture through satellite remote sensing methods. Glaciers deform through the driving force of their own weight and display dramatic responses to both external forcing, such as changes in climate, and internal forcing like variations in stress. Here, we focus on Antarctic …
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The Flow and Fracture of Antarctic Ice Shelves
… into its flow and fracture through satellite remote sensing methods. Glaciers deform through the driving force of their own weight and display dramatic responses to both external forcing, such as changes in climate, and internal forcing like variations in stress. Here, we focus on Antarctic …
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Fine Characterization of Leafing Phenology in the Brazilian Atlantic Forest by Optical and Microwave Remote Sensing
… is therefore poorly characterized by optical remote sensing methods which are not sensitive to small variations in water content in canopy constituents and sensitive to cloud cover. Meanwhile, microwave radar is sensitive to vegetation moisture and so I ask whether radar remote sensing data …
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Mission Planning Tool for space debris studies with the MeerKAT radar
The Radar Remote Sensing Group at the University of Cape Town is currently investigating the feasibility of building an active radar system employing the MeerKAT radio telescope as receiver for space debris detection, tracking and imaging. This dissertation details the development of a Mission …
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Mesospheric wind estimation with the Jicamarca MST radar
Jicamarca radar located in Peru is used to probe the equatorial mesosphere by scattering 50 MHz pulse transmissions from mesospheric turbulent layers; the pulse returns are detected by the radar antenna and subsequently spectral analyzed. This thesis describes the Jicamarca radar con figuration …
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Propagation and Scattering of Waves by Terrain Features
… Each of these problems is encountered in radar, remote sensing and communication systems. The first topic in this dissertation is the study of the effect of random edge roughness on the diffraction of a wave. This has been accomplished by approximating the field beyond the diffracting …
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The study and real-time implementation of attenuation correction for X-band dual-polarization weather radars
… path has been studied extensively in the radar meteorology community. Recently, use of short range dual-polarization X-band radar systems has gained momentum due to lower system cost compared with the much more expensive S-band systems. Advances in dual-polarization radar research have …
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Schneeeigenschaften und Gletscherzonen der Antarktischen Halbinsel im Radarbild : thermische Phänomene der Schnee- und Firndecken im Hinterland der großen Schelfeisabbrüche
… dieser Arbeit die Nutzungsmöglichkeiten der Radarfernerkundung für ein konsistentes Überwachungsprogramm der Schneedecken evaluiert. Die Ergebnisse zeigen dabei, daß sich durch die Auswertung von SAR-Daten unterschiedlicher räumlicher und zeitlicher Auflösung wesentliche Aspekte der …
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Inversion techniques for analyzing long pulse incoherent scatter radar data with a focus on F-region ion drift estimation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Raindrop Size Distribution Retrieval And Evaluation Using An S-band Radar Profiler
Vertical pointing Doppler radar profilers are used to explore the vertical structure of precipitation cloud systems and to provide validation information for use in weather research. In this thesis, a theoretical radar rain-backscatter model was developed to simulate profiler Doppler spectra as a …
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Toward the detection of landscape features : clustering 3D points using spatial and thematic characteristics
ABSTRACTTOWARD THE DETECTION OF LANDSCAPE FEATURES:CLUSTERING 3D POINTS USING SPATIAL AND THEMATIC CHARACTERISTICSByBoleslo Edward RomeroThe study of Geography generally concerns phenomena at or near the surface of the earth. High resolutions of 3D quantitative and qualitative data can represent …
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