Tesis sobre el tema "Radar sounders"
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Leonardo, Carrer. "Advanced Signal Processing Methods for Planetary Radar Sounders Data". Doctoral thesis, Università degli studi di Trento, 2018. https://hdl.handle.net/11572/368977.
Texto completoGerekos, Christopher. "Advanced Backscattering Simulation Methods for the Design of Spaceborne Radar Sounders". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/261416.
Texto completoGerekos, Christopher. "Advanced Backscattering Simulation Methods for the Design of Spaceborne Radar Sounders". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/261416.
Texto completoSbalchiero, Elisa. "Advanced Methods for Generating and Processing Simulated Radar Sounder Data for Planetary Missions". Doctoral thesis, Università degli studi di Trento, 2022. https://hdl.handle.net/11572/355183.
Texto completoFerro, Adamo. "Advanced Methods for the Analysis of Radar Sounder and VHR SAR Signals". Doctoral thesis, Università degli studi di Trento, 2011. https://hdl.handle.net/11572/368915.
Texto completoThakur, Sanchari. "Advanced Methods for Simulation and Performance Analysis of Planetary Radar Sounder Data". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/259173.
Texto completoThakur, Sanchari. "Advanced Methods for Simulation and Performance Analysis of Planetary Radar Sounder Data". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/259173.
Texto completoDonini, Elena. "Advanced methods for simulation-based performance assessment and analysis of radar sounder data". Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/304147.
Texto completoDonini, Elena. "Advanced methods for simulation-based performance assessment and analysis of radar sounder data". Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/304147.
Texto completoIlisei, Ana-Maria. "Advanced Methods for the Analysis of Radar Sounder Data Acquired at the Ice Sheets". Doctoral thesis, Università degli studi di Trento, 2016. https://hdl.handle.net/11572/367890.
Texto completoBerquin, Yann. "Assessing the performances and optimizing the radar sounder design parameters for the EJSM mission (Ganymede and Europa)". Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENU001/document.
Texto completoThe manuscript details the work performed in the course of my PhD on planetary sounding radar. The main goal of the study is to help designing and assessing the sounding radar performances. This instrument will be embarked on the ac{ESA}'s large class mission ac{JUICE} to probe Jupiter's environment and Jupiter's icy moons Callisto, Ganymede and Europa. As an introduction to the problem, a study on Ganymede's surface ac{DEM} and its implications with regard to the radar performances was performed. The results of this work put forward issues due to a hostile environment with important surface clutter which eventually lead to a decrease in the radar signal bandwidth to 8--10 MHz. A first section is then dedicated to the formulation of the direct problem of sounding radar with a focus on surface formulations. This section eventually leads to a novel algorithm for radar surface echo computation from meshed surfaces which proves to be both efficient and accurate. A second section studies the possibility to use surface formulation to recover geophysical surface parameters from sounding radar data. For that purpose, three main approaches are discussed namely (i) a linear approach, (ii) a gradient-based approach and (iii) a statistical approach. These techniques rely on a probabilistic view of the inverse problem at hand and yield good result with different setups. Although we mainly focus on surface reflectivity, we also discuss surface topography inversion. Finally, a last section discusses the work presented in the manuscript and provides perspectives for future work
Ford, Felicity Valerie. "The Domestic Soundscape and beyond : presenting everyday sounds to audiences". Thesis, Oxford Brookes University, 2010. http://radar.brookes.ac.uk/radar/items/7e50609e-9838-91b2-a2fc-86103493075a/1.
Texto completoSandford, David J. "Dynamics of the stratosphere, mesosphere and thermosphere". Thesis, University of Bath, 2008. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.512300.
Texto completoEdel, Léo. "Vers une meilleure connaissance des précipitations en Arctique : utilisation de la télédétection spatiale micro-ondes". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX108.
Texto completoBecause solid precipitation measurements at the surface are complex in Arctic, snowfall rates present significant differences between recent datasets. To further characterize arctic precipitation, microwave remote sensing is an appropriate tool. The radar observations onboard CloudSat provides rates of snowfall at the surface for a 4-years period. These retrievals are validated with in situ data, and compared to various datasets. Despite a good qualitative agreement, significant differences are observed, especially over Greenland. The regional reanalysis shows a better agreement with CloudSat retrievals than the global reanalysis, especially regarding the seasonnal distribution of snowfall rates. Then, CloudSat observations are used as a reference to evaluate the ability of passive microwave sounders to detect arctic snowfall for frequencies around 183 GHz. Detection is possible and relies mainly on brightness temperatures at 190 and 183 ± 3 GHz as well as the temperature near the surface and the integrated water vapor. A poor detection capability is observed in cold conditions and for light snowfall. Despite these limitations, the algorithm provides significant information for intense snowfalls, with good sampling due to its wide swath and long time series. Available for the last 20 years, passive microwave observations show a notable ability for a better characterization of arctic snowfall
Hawkinson, James A. "A comparison study using the goes sounder cloud top pressure product and cloud lidar and radar". 2003. http://catalog.hathitrust.org/api/volumes/oclc/53142756.html.
Texto completoTypescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 32-33).