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Tesis sobre el tema "Radar imageur"

Autor: Grafiati

Publicado: 25 de mayo de 2024

Última modificación: 31 de julio de 2025

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1

Schreiber, Floriane. "Estimation des conditions océanographiques par inversion de données issues d'un radar imageur non calibré." Electronic Thesis or Diss., Toulon, 2020. http://www.theses.fr/2020TOUL0016.

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De nombreux modèles empiriques de distribution statistique du fouillis de mer existent mais ne sont pas directement paramétrable par l’état de mer, et ainsi il n’est pas possible d’y pratiquer une méthode d’inversion. Pour modéliser la distribution statistique de l’intensité, nous utilisons un modèle deux-échelles (TSM) paramétré directement par l’état de mer via la mss (mean square slope). Ce modèle permet de retrouver de manière cohérente la NRCS mais ne parvient pas à décrire de manière la distribution du fouillis de mer simultanément dans les deux canaux de polarisations directs dû à une s

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2

Benahmed, Daho Omar. "Radar ULB pour la vision à travers les murs : mise au point d'une chaîne de traitement de l'information d'un radar imageur." Thesis, La Rochelle, 2014. http://www.theses.fr/2014LAROS036/document.

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Nous nous intéressons dans cette thèse à la vision à travers les murs (VTM) par radar ULB, avec comme objectif la mise au point d’une chaîne de traitement de l’information (CTI) complète pouvant être utilisée par différents types de radar imageur VTM. Pour ce faire, nous souhaitons prendre en compte le moins possible d’information a priori, ni sur les cibles, ni sur leur contexte environnemental. De plus, la CTI doit répondre à des critères d’adaptabilité et de modularité pour pouvoir traiter les informations issues de deux types de radar, notamment, le pulsé et le FMCW, développés dans deux p

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3

Cattin, Viviane. "Traitement et exploitation des signaux issus d'un imageur électromagnétique." Grenoble INPG, 1998. http://www.theses.fr/1998INPG0128.

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Un imageur electromagnetique haute resolution est envisage afin de detecter et de localiser des objets situes dans des structures heterogenes. Il doit permettre la mesure non destructive de contrastes en permittivite et en conductivite, a une profondeur d'investigation de quelques decimetres, avec une resolution de l'ordre du centimetre. Dans ce but, nous cherchons a identifier les points delicats de son developpement. Afin de choisir le systeme et interpreter sa reponse, nous etudions la caracterisation electromagnetique de materiaux, et les phenomenes de reflexions secondaires et de resonanc

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4

Beaudoin, André. "Observation de la terre par radar imageur : estimation de la biomasse forestière : [thèse soutenue sur un ensemble de travaux]." Toulouse 3, 1992. http://www.theses.fr/1992TOU30244.

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Un des parametres-clefs a apprehender dans l'etude des ecosystemes forestiers est la biomasse forestiere, tant dans les etudes de changements globaux que dans la gestion des ressources forestieres. L'observation par radar imageur des ecosystemes forestiers s'avere une application prometteuse des techniques de teledetection, considerant la penetration des micro-ondes dans les couverts vegetaux. De plus, le fonctionnement par tout temps des systemes radar s'avere necessaire pour l'observation des regions a forte couverture nuageuse. Afin de demontrer l'apport de la teledetection radar pour l'est

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5

Dellinger, Flora. "Descripteurs locaux pour l'imagerie radar et applications." Thesis, Paris, ENST, 2014. http://www.theses.fr/2014ENST0037/document.

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Nous étudions ici l’intérêt des descripteurs locaux pour les images satellites optiques et radar. Ces descripteurs, par leurs invariances et leur représentation compacte, offrent un intérêt pour la comparaison d’images acquises dans des conditions différentes. Facilement applicables aux images optiques, ils offrent des performances limitées sur les images radar, en raison de leur fort bruit multiplicatif. Nous proposons ici un descripteur original pour la comparaison d’images radar. Cet algorithme, appelé SAR-SIFT, repose sur la même structure que l’algorithme SIFT (détection de points-clés et

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6

Dellinger, Flora. "Descripteurs locaux pour l'imagerie radar et applications." Electronic Thesis or Diss., Paris, ENST, 2014. http://www.theses.fr/2014ENST0037.

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Nous étudions ici l’intérêt des descripteurs locaux pour les images satellites optiques et radar. Ces descripteurs, par leurs invariances et leur représentation compacte, offrent un intérêt pour la comparaison d’images acquises dans des conditions différentes. Facilement applicables aux images optiques, ils offrent des performances limitées sur les images radar, en raison de leur fort bruit multiplicatif. Nous proposons ici un descripteur original pour la comparaison d’images radar. Cet algorithme, appelé SAR-SIFT, repose sur la même structure que l’algorithme SIFT (détection de points-clés et

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7

Matarese, Joseph R. (Joseph Richard). "Topographic reconstruction from radar imagery." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/59857.

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8

Kim, Jungwhan John. "Road detection on radar imagery." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/53080.

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A facet based road network detection procedure is described for radar imagery. The procedure includes a line detection part and a road detection and connection part. The line detection part analytically detects linear features using a facet Valley finding technique. Valleys are defined as zero crossings of the first directional derivatives of a bicubic facet model taken in a direction extremizing the second directional derivative. The road detection and connection part statistically screens the linear features on a component by component basis, and then optimally connects the screened linear f

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9

Reeves, Bryan Anthony. "Slope stability radar /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17049.pdf.

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10

Yuzcelik, Cihangir Kemal. "Radar absorbing material design." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FYuzcelik.pdf.

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11

Najeh, Maher. "Filtrage et analyse des images radar." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq25342.pdf.

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12

Hagedorn, Michael. "Classification of synthetic aperture radar images." Thesis, University of Canterbury. Electrical and Computer Engineering, 2004. http://hdl.handle.net/10092/5966.

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In this thesis the maximum a posteriori (MAP) approach to synthetic aperture radar (SAR) analysis is reviewed. The MAP model consists of two probability density functions (PDFs): the likelihood function and the prior model. Contributions related to both models are made. As the first contribution a new likelihood function describing the multilook three-polarisation intensity SAR speckle process, which is equivalent to the averaged squared amplitude samples from a three-dimensional complex zero-mean circular Gaussian density, has been derived. This PDF is a correlated three-dimensional chi-squa

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13

Odhiambo, George Samuel Obonyo. "Bayesian reconstruction of subsurface radar images." Thesis, University of York, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296717.

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14

Walessa, Marc. "Bayesian information extraction from SAR images." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964273659.

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15

Akyildiz, Yeliz. "Feature extraction from synthetic aperture radar imagery." Connect to resource, 2000. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1258651629.

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16

Preiss, Mark. "Detecting scene changes using synthetic aperture radar interferometry /." Title page, table of contents and abstract only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09php9242.pdf.

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17

Wilson, Clarence J. "Calibration of and attitude error estimation for a spaceborne scatterometer using measurements over land /." Diss., CLICK HERE for online access, 1998. http://contentdm.lib.byu.edu/ETD/image/etd19.pdf.

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18

Mun, Kok Leong. "Stepped frequency imaging radar simulation." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA379137.

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19

Dunlop, Jonathan. "Texture analysis in sonar images." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340489.

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20

Matthew, Pianto Donald. "Modeling synthetic aperture radar image data." Universidade Federal de Pernambuco, 2008. https://repositorio.ufpe.br/handle/123456789/7128.

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Made available in DSpace on 2014-06-12T18:29:09Z (GMT). No. of bitstreams: 2 arquivo4274_1.pdf: 5027595 bytes, checksum: 37a31f281a0f888465edbdc60cb2db39 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Nessa tese estudamos a estimação por máxima verossimilhança (MV) do parâmetro de aspereza da distribuição G 0 A de imagens com speckle (Frery et al., 1997). Descobrimos que, satisfeita uma certa condição dos momentos amostrais, a função de verossimilhança é monótona e

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21

Tiranti, Luca. "Simultaneous localization and mapping using radar images." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22893/.

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Questa tesi affronta il problema di localizzazione e mappatura simultanea in locali indoor utilizzando la tecnologia radar a onde millimetriche. Gli scenari considerati e le tecnologie impiegate sono in linea con il concetto di “personal mobile radar” rendendo questo lavoro un proof-of-concept di tale idea, testandone le performance in ambienti reali attraverso differenti campagne di misura. In accordo con tale concetto, sarà possibile integrare in dispositivi mobili, quali smartphone e tablet, array di antenne che scansioneranno autonomamente l’ambiente circostante e permetteranno di raggiung

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22

Jolly, Alistair Duncan. "Feature extraction from millimetre wave radar images." Thesis, University of Central Lancashire, 1992. http://clok.uclan.ac.uk/19034/.

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This thesis describes research performed into the segmentation and classification of features on images of wound terrain generated from an airborne millimetre wave radar. The principles of operation of the radar are established and it is shown how an image is produced from this particular radar. The parameters such as wavelength, antenna size and pulse length are related to the images and a mathematical description of the radar data is given. The effectiveness of established image processing techniques is reviewed when applied to millimetre wave radar images and a statistical classification te

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23

Chong, Aaron A. "Complementary GPR antennas and watertank testing /." St. Lucia, Qld, 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16096.pdf.

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24

Gouveia, Carolina Teixeira de Sousa. "Bio-Radar." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23811.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>Nesta dissertação é desenvolvido um protótipo de um bio-radar, cujo foco é a aquisição e processamento do sinal respiratório em tempo real. O sistema do bio-radar permite medir sinais vitais com precisão, baseando-se no princípio do efeito Doppler, que relaciona as propriedades do sinal recebido com a variação da distância percorrida desses sinais. Essa distância está compreendida entre as antenas do radar e a caixa torácica do paciente. No contexto deste projeto, é apresentado o modelo matemático do bio-radar e é também desenvolvi

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25

Clark, Christine. "Geocoding and stereoscopy of synthetic aperture radar imagery." Thesis, University College London (University of London), 1991. http://discovery.ucl.ac.uk/1349607/.

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This thesis is concerned with the geocoding of Synthetic Aperture Radar (SAR) images and the use of stereo SAR images. The work was carried out as part of the preparation for the launch of the ERS-1 sateffite, due in July 1991, which will carry a SAR sensor. There are two basic approaches to geocoding: image-to-object and object-to-image. Both of these methods have been analysed and assessed on experimental data, namely SIR-B imagery of Mount Shasta. Each type of geocoding requires the solution of nonlinear equations. It has been shown that if the parameters which control the geocoding process

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26

Greer, Donald Reed. "Multiresolution laser radar range profiling of real imagery." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40181.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.<br>Includes bibliographical references (leaves 112-113).<br>by Donald Reed Greer.<br>M.Eng.

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27

Gau, Jen-Yu. "Analysis of low probability of intercept (LPI) radar signals using the Wigner Distribution." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FGau.pdf.

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Thesis (M.S. in Systems Engineering)--Naval Postgraduate School, September 2002.<br>Thesis advisor(s): Phillip E. Pace, Herschel H. Loomis, Jr. Includes bibliographical references (p. 145-146). Also available online.

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28

Menchik, Miriam Teresa Menegassi. "Modelamento matemático de radar de vigilância aerotransportado." Instituto Tecnológico de Aeronáutica, 1995. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=1670.

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Neste trabalho e proposto um modelo matematico representativo do sinal de video de um radar de vigilancia aerotransportado. O modelo baseia-se em um processo Markoviano bidimensional causal de segunda ordem, que tem os seus parametros calculados atraves das caracteristicas do radar e do sinal eco recebido. O modelo proposto gera as imagens que sao a realizacao de um processo estocastico correlacionado estacionario com densidade de probabilidade Rayleigh. As imagens geradas sao dependentes dos parametros fisicos do radar, da geometria de iluminacao da cena e das caracteristicas dos alvos. Para

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29

Dagher, Joseph C., Michael W. Marcellin, and Mark A. Neifeld. "COMPRESSION FOR STORAGE AND TRANSMISSION OF LASER RADAR MEASUREMENTS." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/607450.

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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>We develop novel methods for compressing volumetric imagery that has been generated by single platform (mobile) range sensors. We exploit the correlation structure inherent in multiple views in order to improve compression efficiency. We show that, for lossy compression, three-dimensional volumes compress more efficiently than two-dimensional (2D) images. In fact, our error metric suggests that accumulating more than 9 range images in one volume before compression

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30

Lach, Stephen R. "Semi-automated DIRSIG scene modeling from 3D lidar and passive imagery /." Online version of thesis, 2008. http://hdl.handle.net/1850/7861.

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31

Nezry, Edmond. "Restauration de la réflectivité radar pour l'utilisation conjointe des images radar et optiques en télédétection." Toulouse 3, 1992. http://www.theses.fr/1992TOU30277.

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Ce travail a pour principal objectif la restauration de la reflectivite radar dans les images radar, de sorte que celles-ci puissent etre considerees comme des images reflectance et etre traitees ulterieurement a l'aide des methodes de traitement classiques utilisees pour les images optiques. La nature coherente des images radar implique une operation de filtrage du speckle. Le filtrage ne devant pas entrainer de degradation de la resolution, la texture, les structures, et les reponses des forts diffuseurs doivent simultanement etre preservees. La methode bayesienne d'estimation maximum a post

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32

Wray, Lisa Shannon. "Synthetic aperture radar image simulator for interferometry." Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/5078.

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Bibliography: leaves 111-113.<br>An interferometric synthetic aperture radar (SAR) simulator was created for the purposes of experimenting with and demonstration of the interferometric process, mission planning and radar image interpretation. The simulation method employs image statistics and terrain geometry to form a synthetic image and requires inputs of a digital elevation model (DEM), flight path, description, radar parameters, a terrain classification map and temporal decorrelation factors. Output images include the following images: radar cross section, power, total coherence, temporal

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33

Qi, Yusheng Ph D. Massachusetts Institute of Technology. "Sea surface wave reconstruction from marine radar images." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74939.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 103-105).<br>The X-band marine radar is one type of remote sensing technology which is being increasingly used to measure sea surface waves nowadays. In this thesis, how to reconstruct sea surface wave elevation maps from X-band marine radar images and do wave field prediction over short term in real time are discussed. The key idea of reconstruction is using dispersion relation based on the linear wave theory to separa

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34

Teo, Ching Leong. "Bistatic radar system analysis and software development." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FTeo%5FChing.pdf.

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Thesis (M.S. in Engineering Science)--Naval Postgraduate School, December 2003.<br>Thesis advisor(s): David C. Jenn, D. Curtis Schleher. Includes bibliographical references (p. 95-96). Also available online.

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35

Duncan, David P. "Motion Compensation of Interferometric Synthetic Aperture Radar." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd477.pdf.

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36

Yoho, Peter K. "Satellite scatterometers : calibration using a ground station and statistical measurement theory /." Diss., CLICK HERE for online access, 2003. http://contentdm.lib.byu.edu/ETD/image/etd306.pdf.

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37

Galyean, Christina Pilkey. "Investigation and characterization of a thermal infrared all-sky imager." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/28004.

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38

Maciel, Luz Marilda de Moraes. "Processamento de imagens ALOS/PALSAR aplicado à regularização fundiária na Amazônia." reponame:Repositório Institucional da UnB, 2012. http://repositorio.unb.br/handle/10482/12607.

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Dissertação (mestrado)—Universidade de Brasília, Departamento de Geografia, 2012.<br>Submitted by Alaíde Gonçalves dos Santos (alaide@unb.br) on 2013-03-26T15:22:56Z No. of bitstreams: 1 2012_LuzMarildadeMoraesMaciel.pdf: 20188557 bytes, checksum: 26d5c3e7c973e711ac48225e68bcdc60 (MD5)<br>Approved for entry into archive by Guimaraes Jacqueline(jacqueline.guimaraes@bce.unb.br) on 2013-03-27T11:30:13Z (GMT) No. of bitstreams: 1 2012_LuzMarildadeMoraesMaciel.pdf: 20188557 bytes, checksum: 26d5c3e7c973e711ac48225e68bcdc60 (MD5)<br>Made available in DSpace on 2013-03-27T11:30:13Z (GMT). No. of bits

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39

Almutiry, Muhannad Salem S. "Extraction of Weak Target Features from Radar Tomographic Imagery." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1470154676.

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40

Vachon, Paris W. "Synthetic-aperture radar imaging of the ocean surface : theoretical considerations, and experiments with simulated and actual SAR imagery." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27556.

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Three key areas of controversy in synthetic-aperture radar (SAR) imaging of ocean surface waves are considered: first, the nature of Bragg scattering; second, the role, magnitude, and calculation of the scene coherence time; and third, the relevant ocean wave velocities for coherent Doppler modulations. This work begins with a re-derivation and extension of existing SAR imaging theory for point and diffuse targets. Generic, relatively simple, closed-form expressions for the impulse response, the resolution, and the image bandwidth summarize this unified treatment. Theoretical differences betw

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41

Gama, Fábio Furlan. "Correção radiométrica de imagens de radar de abertura real." Instituto Nacional de Pesquisas Espaciais (INPE), 1996. http://urlib.net/sid.inpe.br/mtc-m19/2010/11.22.11.44.

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Este trabalho tem como objetivo de desenvolver um método de correção radiométrica das imagens do radar de abertura real (SLAR-RAR) da cooperação INPE/DLR, com a finalidade de promover um pré-processamento das mesmas. Esta correção visa facilitar a discriminação dos alvos e obter um método capaz de separar e medir as áreas dos mesmos. Para estabelecer o algoritmo de correção, utilizou-se a ação radar, o diagrama de irradiação da antena, as informações de geometria de isição e as características elétricas do sistema. Imagens digitais, obtidas no experimento Arquimedes e fornecidas pelo DLR, bem

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42

Schwegmann, Colin. "Advanced ship detection methods in Synthetic Aperture Radar imagery." Thesis, University of Pretoria, 2018. http://hdl.handle.net/2263/64094.

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Large area monitoring plays an important role in the Maritime Domain Awareness initiative. To effectively monitor long coastlines and further out at sea, a multitude of monitoring techniques are necessary. One of these techniques, satellite Synthetic Aperture Radar (SAR), can monitor large areas independent of weather or time of day. SAR imagery is particularly useful in the tracking of ships at sea as ships are highly reflective objects and become visible against the dark ocean background. Two novel SAR ship detection techniques are proposed, both of which are tested against a newly created 4

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43

Sandys-Renton, Jane Belinda Elizabeth. "Segmentation techniques for SAR imagery." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317224.

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44

Belgued, Youssef. "Amélioration de la qualité géométrique des images spatiales radar : méthodes de localisation et restitution du relief par radargrammétrie." Toulouse, INPT, 2000. http://www.theses.fr/2000INPT019H.

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L'observation de la Terre depuis l'espace par les capteurs radar a ouvert de nouvelles perspectives dans le domaine des techniques d'exploitation des images et dans le domaine des applications servies par ces produits radar. Cette thèse s'intéresse à la qualité géométrique des images radar à synthèse d'ouverture acquises par satellite. Cet aspect est d'une grande importance lors de l'intégration de ces données dans des systèmes avec des sources de données hétérogènes, et lors de l'application de méthodes basées sur les modèles géométriques des images telles que la localisation et la restitutio

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45

Ferguson, Jeremiah R. "Using the grey-level co-occurrence matrix to segment and classify radar imagery." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447631.

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46

Lin, Chih-heng. "Distributed subarray antennas for multifunction phased-array radar." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FLin.pdf.

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Thesis (M.S. in Systems Engineering)--Naval Postgraduate School, September 2003.<br>Thesis advisor(s): David C. Jenn, Richard W. Adler. Includes bibliographical references (p. 71-72). Also available online.

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47

Lim, Teck Yong. "Broadband counterwound spiral antenna for subsurface radar applications." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FLim%5FT.pdf.

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Thesis (M.S. in Engineering Science (Electrical Engineering))--Naval Postgraduate School, December 2003.<br>Thesis advisor(s): David Jenn, Jeffrey B. Knorr. Includes bibliographical references (p. 73-76). Also available online.

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48

Dong, Weizhen. "Time Blanking for GBT Data with RADAR RFI." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd468.pdf.

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49

Gadre, Mandar M. "Automated building footprint extraction from high resolution LIDAR DEM imagery." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4320.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (July 13, 2006) Includes bibliographical references.

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50

Hall, Graham. "Digital image processing of orbital synthetic aperture radar." Thesis, University of Central Lancashire, 1989. http://clok.uclan.ac.uk/20081/.

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Synthetic aperture radar (SAP) is gaining increasing importance in the field of remote sensing. The main feature of image data transmitted from orbital satellite synthetic aperture radar is all-weather performance, which explains its importance in many applications. Unfortunately SAP image data is susceptible to "speckle noise", which means that considerable processing is required before full use can be made of the data. This thesis describes research performed into the enhancement of linear features, corresponding to ships' wakes, in noisy SAP satellite images. A summary of noise reduction te

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