Dissertations / Theses: 'Optical radar'

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Raghavan, V. P. "High precision laser radar tracking device /." Online version of thesis, 1991. http://hdl.handle.net/1850/11453.

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Weverka, Robert T. "Optical signal processing of phased array radar." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3207762.

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Seeger, Mauritius. "3-D imaging using optical coherence radar." Thesis, University of Kent, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263698.

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BRUHNS, THOMAS VICTOR. "HARDWARE AND SOFTWARE FOR A COMPUTER CONTROLLED LIDAR SYSTEM." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188042.

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The hardware and software for a computer controlled optical radar, or lidar, system are described. The system builds on a previously installed pulsed ruby backscatter lidar, capable of acquiring data at controlled azimuth and elevation angles through the atmosphere. The described system replaces hardwired logic with computer control. Two coupled computers are used to allow a degree of real time control while data are processed. One of these computers reads and controls mount elevation angle, reads the laser energy monitor, and senses firing of the laser. The other computer serves as a user interface, and receives the lidar return data from a digitizer and memory, and the angle and energy information from the other computer. The second computer also outputs data to a disc drive. The software provided with the system is described, and the feasibility of additional software for both control and data processing is explored. Particular attention is given to data integrity and instrument and computer operation in the presence of the high energy pulses used to drive the laser. A previously described laser energy monitor has been improved to isolate it from laser transients. Mount elevation angles are monitored with an absolute angle readout. As a troubleshooting aid, a simulator with an output that approximates the lidar receiver output was developed. Its output is digitally generated and provides a known repetitive signal. Operating procedures are described for standard data acquisition, and troubleshooting is outlined. The system can be used by a relatively inexperienced operator; English sentences are displayed on the system console CRT terminal to lead the operator through data acquisition once the system hardware is turned on. A brief synopsis of data acquired on the system is given. Those data are used as the basis of other referenced papers. It constitutes soundings for over one hundred days. One high point has been operation of the system in conjunction with a balloon borne atmospheric particulate sampling package. The system has also been used occasionally as the transmitter of a lidar system with physically separated receiver and transmitter.

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Helt, Michael F. "Vegetation identification with Lidar." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Sep%5FHelt.pdf.

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Gast, David W. "LIDAR design for space situational awareness." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Sept/08Sep%5FGast.pdf.

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Thesis (M.S. in Astronautical Engineering)--Naval Postgraduate School, September 2008. Thesis Advisor(s): Agrawal, Brij N. ; Boger, Dan C. "September 2008." Description based on title screen as viewed on November 3, 2008. Includes bibliographical references (p. 79-80). Also available in print.

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Xu, Cuichun. "Statistical processing on radar, sonar, and optical signals /." View online ; access limited to URI, 2008. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3328735.

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Hartup, David Carl. "Emitter identification using optical processors." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/15672.

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Leeson, Michael J. "The application of quasi-optical techniques to millimetre wave radar." Thesis, University of St Andrews, 1993. http://hdl.handle.net/10023/2774.

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The application of Quasi Optical techniques has been of great benefit to the field of instrumentation for frequencies between 750Hz and several hundred OHz. The application of Quasi Optical techniques to millimetre wave radar, described in this thesis, has produced an FMCW Doppler radar capable of operation at 940Hz and 1400Hz. Total polarization agility and a capability to operate over a very wide bandwidth is demonstrated. Quasi Optical circuits are proposed as solutions for many of the system requirements, and these are fully analyzed. Significant benefits of these techniques are demonstrated, and future improvements are suggested. A new design tool, in the form of a program, for Quasi Optical circuit analysis is presented and is used for the analysis of all the optical circuits in this thesis. The program has speeded up the design process for optical circuits. A new type of feedhorn is described and characterized. Its performance compares well with existing feedhorns, and it provides a low cost alternative to existing antenna requirements.

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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 features using a dynamic programming algorithm. This thesis also includes as a preprocessing technique for noisy images, an adaptive noise removal algorithm, and suggests a practical method of estimating a local noise variance. Master of Science

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Buchan, Maria Jane. "Optical and radar studies of the nightide auroral ionosphere." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285078.

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Morrison, Richard B. "Fiducial marker detection and pose estimation from LIDAR range data." Thesis, Monterey, California : Naval Postgraduate School, 2010. http://edocs.nps.edu/npspubs/scholarly/theses/2010/Mar/10Mar%5FMorrison.pdf.

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Thesis (M.S. in Modeling, Virtual Environments, and Simulation (Moves))--Naval Postgraduate School, March 2010. Thesis Advisor(s): Kolsch, Mathias ; Chung, Timothy H. "March 2010." Author(s) subject terms: LIDAR, point cloud, feature extraction, fiducial marker, pose estimation. Includes bibliographical references (p. 95-99). Also available in print.

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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. 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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Mu, Jun. "VHF radar aurora, statistics, fading and correlation with optical aurora." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq24039.pdf.

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Chini, Marco <1973&gt. "Radar and optical remote sensing techniques for earthquake damage mapping." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/863/1/Tesi_Chini_Marco.pdf.

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Chini, Marco <1973&gt. "Radar and optical remote sensing techniques for earthquake damage mapping." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/863/.

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Seldomridge, Nathan Lewis. "Dual-polarization cloud lidar design and characterization." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/seldomridge/SeldomridgeN0805.pdf.

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Hoffman, David Swick. "Two wavelength Lidar instrument for atmospheric aerosol study." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/hoffman/HoffmanD0508.pdf.

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A two-color lidar instrument and inversion algorithms have been developed for the study of atmospheric aerosols. The two-color lidar laser transmitter is based on the collinear fundamental 1064 nm and second harmonic 532 nm output of a Nd:YAG laser. Scattered light is collected by the two-color lidar receiver using a Schmidt-Cassegrain telescope with the 532 nm channel monitored using a gated photomultiplier tube (PMT) and the 1064 nm channel monitored using an avalanche photodiode (APD). Data is collected from the PMT and APD using a 14 bit 200 MHz data acquisition card. The lidar inversion algorithm developed to analyze the data collected by the two-color lidar is based on a constant lidar ratio assumption at both the 1064 nm and 532 nm wavelengths with the constrained ratio aerosol model (CRAM) providing the initial lidar ratios at the two wavelengths to complete the lidar inversion. Data from the CALIOP lidar on board the CALIPSO satellite are presented to verify software algorithm performance. Data from the two-color lidar are then presented demonstrating the two-color lidar instrument\'s capabilities. The analysis of these data identifies smoke and industrial aerosols in the atmosphere above Bozeman. Finally an error analysis of the lidar instrument and accompanying analysis software is presented. The findings of this analysis are that error introduced by the APD and PMT is dominant; the error introduced by the optical detectors is much larger than the error from other sources examined such as quantization error, and the error associated the use of numerical integration in the data analysis algorithm.

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Pietro, Lisa S. "Developing terrestrial-LIDAR-based digital elevation models for monitoring beach nourishment performance." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 89 p, 2007. http://proquest.umi.com/pqdweb?did=1400424071&sid=10&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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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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Meng, Han. "Using light detection and ranging (LiDAR) for vegetation vertical structure studies." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707992.

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Wissell, Phillip Alan. "DESIGN, CONSTRUCTION AND PERFORMANCE EVALUATION OF A GAIN-SWITCHED AMPLIFIER FOR LIDAR APPLICATIONS." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275278.

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González, Sanpedro Mª del Carmen. "Optical and radar remote sensing applied to agricultural areas in europe." Doctoral thesis, Universitat de València, 2008. http://hdl.handle.net/10803/9876.

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The global population growth, as well as the social and economic importance that the agricultural sector has in many regions of the world, makes it very important to develop methods to monitor the status of crops, to improve their management, as well as to be able to make early estimates of the agricultural production. One of the main causes of uncertainty in the production of crops is due to the weather, for example, in arid and semiarid regions of the world, periods of drought can generate big losses in agricultural production, which may result in famine. Thus, FAO, during their summit in June 2008, stressed the need to increase agricultural production as a measure to strengthen food security and reduce malnutrition in the world.Concern for increasing crop production, has generated, during the last decades, significant changes in agricultural techniques. For example, there has been a widespread use of pesticides, genetically modified crops, as well as an increase in intensive farming. In turn, the market influences crop rotations, and as a consequence, changes in the spatial distribution of crops are very common. Therefore, in order to make estimates of agricultural production, it is also necessary to map regularly the crop fields, as well as their state of development.The aim of this thesis is to develop methods based on remote sensing data, in the radar and optical spectral regions, in order to monitor crops, as well as a to map them. The results of this thesis can be combined with other techniques, especially with models of crop growth, to improve the prediction of crops.The optical remote sensing methods for classifying and for the cartography of crops are well established and can be considered almost operational. The disadvantage of the methods based on optical data is that they are not applicable to regions of the world where cloud coverage is frequent. In such cases, the use of radar data is more advisable. However, the classification methods using radar data are not as well established as the optical ones, therefore, there is a need for more scientific studies in this field. As a consequence, this thesis focuses on the classification of crops using radar data, particularly using AIRSAR airborne data and ASAR satellite data.

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Smith, Steven Michael. "Optical and radar wind comparisons in the mesosphere and lower thermosphere." Thesis, University of Canterbury. Physics, 1996. http://hdl.handle.net/10092/8159.

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This project involved the comparison of horizontal winds in the upper mesosphere at 80-105 km which were obtained by two different ground-based techniques located in Canterbury. Optical Doppler winds were derived from night time observations of the mesospheric 557.7 nm airglow emission near 95 km (FWHM intensity ∼10-12 km) using a Fabry-Perot Spectrometer (FPS) during the period February 1991 to July 1994. These were compared to simultaneous radar winds obtained using a partial-reflection MF (2.4 MHz) wind-profiling radar. The comparisons were made on 103 nights considered suitable by exhibiting no cloud and low magnetic activity (low Kp) in order to eliminate the possibility of auroral contamination in the FPS measurements. The results of the FPS/radar wind comparisons were of limited success due to the significant effect of RF noise associated with the radar wind measurements. The meridional optical/radar wind comparisons produced more consistent results than the zonal wind comparisons. The distribution of daily mean radar wind vectors for all 103 days was aligned perpendicular to the direction of the magnetic meridian. This indicates that the radar winds at 85-105 km are possibly under partial geomagnetic control. The mean height of best agreement from the cross-correlations between the night time FPS and radar hourly mean winds was 95.8 km with a standard deviation of 6.4 km. This height is agrees closely with the average height of 95.2 km obtained from studies of (satellite) WINDII 557.7 nm emission data. In a second comparison of simultaneous hourly FPS and radar winds, observations averaged over several nights during March/ April 1993 were compared with a mean 557.7 nm emission height profile at 44°S from WINDII data for March/ April. There was good agreement between the FPS and radar hourly winds height in the 88-96 km height region, with best agreement at 92 km. In an alternative, best agreement between the comparison of phase of the semidiurnal tide fitted to the optical and radar winds was found to occur in the 100-105 km height region. The amplitudes of the semi-diurnal tide as exhibited in the optical and radar wind fields were investigated and the optical tidal amplitudes were generally larger than the corresponding radar amplitudes. The median optical/radar semi-diurnal amplitude at a height of 95 km was 1.4 with a lower and upper quartile values of 1.0 and 2.5, respectively. The amplitude discrepancy was largest near 95 km.

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Hagström, Adrian L., and L. Albin M. Vass. "Verification of 3D-printed quasi-optical lenses for 60GHz radar applications." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-37093.

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With the recent rise of 3D-printing as a form of manufacturing and their advantages for quick prototyping there is an interest for 3D-printed optical components. This thesis tests how well 3D-printed quasi-optical components preform and verify measurements with electromagnetic simulations. Measurements were made using a 60GHz FM-CW radar as well with a trihedral reflector, and tested on 3D-printed PLA lenses printed using an Ultimaker 2+. The measurements made are of the refractive index of the material, as well as the focal length of the lenses. Results showed PLA having a refractive index close to n = 1.654 in the 60GHz region. Results also showed the lenses having consistent properties like focal length and gain, two lenses having focal length of 23.7 and 23.9 mm which are close to the simulation of 24.05 mm. These findings shows 3D printed quasi-optical components have sufficient performance for use of prototyping or production depending on use. There are also some questions that have arisen like how does crystallisation in the plastic affect the components properties? And how does the PLA degrading affect the quality of the lenses over time? På grund av framgångar inom 3D-utskrivning på senaste tiden som en form av tillverkning och dess fördelar med snabb framtagande av prototyper finns det ett intresse för utskrivna optiska komponenter. Detta examensarbete testar hur väl 3D-utskrivna kvasioptiska komponenter funger\-ar och verifierar testresultat med elektromagnetiska simuleringar. Mät\-ning\-arna gjordes med en FM-CW radar och en trihedral reflektor, och testade PLA linser utskrivna med en Ultimaker 2+. Mätningar\-na gjordes på materialets brytningsindex samt linsernas brännvidd. Resultaten visade att PLA har ett brytningsindex nära n = 1.654 i 60GHz området. Resultaten visade även hur linserna har konsekventa egenskaper som brännvidd och förstärkning. De två slutgiltiga linserna hade en brännvidd på 23.7 and 23.9 mm vilket är nära simuleringen på 24.05 mm. Dessa resultat visar att 3D-utskrivna komponenter har tillräcklig prestanda för användning i framtagande av prototyper eller produktion beroende på användning. Det finns en del frågor som kommit till, som hur påverkar plastens kristallisation komponentens egenskaper? Och hur påverkar PLAs nedbrytande linsernas kvalité?

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Gonzalez, Sanpedro Maria del Carmen. "Optical and radar remote sensing applied to agricultural areas in Europe." Toulouse 3, 2008. http://www.theses.fr/2008TOU30228.

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L'objectif de la thèse est de développer des méthodes de cartographie et de suivi des cultures basées sur des données de télédétection, radar et optique. Les résultats pourront être combinés avec d'autres techniques, notamment avec des modèles de croissance des cultures, pour améliorer la prévision des récoltes. Quatre instruments différents, 3 sur satellite (LANDSAT-TM, ENVISAT-MERIS, ENVISAT-ASAR) et 1 aéroporté (AIRSAR) sont utilisés dans trois régions d'étude en Europe (Barrax, Toulouse et Flevoland). Les travaux sont présentés en deux parties, optique et radar. Dans la première partie, les données LANDSAT sont utilisées pour l'inversion du LAI à Barrax (Castilla-La Mancha) à l'aide du modèle de transfert radiatif PROSPECT+SAIL. Les résultats sont validés avec des mesures expérimentales acquises au cours de la campagne sur le terrain ESA SPARC-2003, montrant une bonne corrélation. Une méthode est ensuite proposée pour inverser le LAI et la chlorophylle à partir de données MERIS. La méthode implique une inversion du modèle, PROSPECT+SAIL avec une contrainte temporelle (une courbe pour l'ensemble du cycle de culture est inversée). Les résultats montrent que cette méthode fonctionne mieux que les inversions date par date. Toutefois, l'inversion de la chlorophylle nécessite encore une étude plus approfondie. Dans la partie radar, une méthode de classification basée sur les connaissances des mécanismes de rétrodifusion est proposée. Elle utilise des données polarimétriques en bande C de l'instrument AIRSAR. La méthode est appliquée à des images dans le Flevoland (Pays-Bas). Les résultats indiquent que ces méthodes peuvent être plus robustes que les méthodes statistiques usuelles. . El aumento de la población mundial, así como la importancia social y económica que el sector agrícola tiene en muchas regiones del mundo, hace que sea muy importante desarrollar métodos que permitan hacer un seguimiento del estado de los cultivos, mejorar la gestión de los mismos, así como poder realizar una estimación temprana de la producción. La principal causa de incertidumbre en la producción de las cosechas es debida a las condiciones meteorológicas, por ejemplo, en las regiones áridas y semiáridas del mundo los períodos de sequía generan grandes pérdidas en la producción agrícola, la cuales se traducen en hambrunas. Así, la FAO, durante su cumbre de Junio 2008, insistió en la necesidad de aumentar a producción agrícola como una medida para reforzar la seguridad alimentaria y reducir la desnutrición en el mundo. La preocupación por aumentar la producción de cultivos, ha generado, durante las últimas décadas, importantes cambios en las técnicas agrícolas. Por ejemplo, se ha producido un uso generalizado de productos fitosanirios, de cultivos modificados genéticamente, así como un aumento de la agricultura intensiva. A su vez, la rotación de cultivos está cada vez más influenciada por el mercado, siendo los cambios en la distribución espacial de los cultivos muy frecuentes. Por lo tanto, para poder hacer estimaciones de la producción agrícola, es necesario producir eriódicamente mapas de cultivos, así como cartografiar su estado de desarrollo. La presente tesis doctoral tiene como objetivo desarrollar métodos basados en datos de teledetección, en la región del óptico y en la región del radar, que permitan realizar un seguimiento de los cultivos, así como una cartografía de los mismos. Los resultados de esta tesis pueden combinarse con otras técnicas, especialmente con los modelos de crecimiento de cultivo, para mejorar la predicción de las cosechas. Los métodos de teledetección para la clasificación y la cartografía de cultivos utilizando datos en la región del óptico están bien establecidos y pueden considerarse casi operacionales. La desventaja de estos estudios basados en datos ópticos es que no pueden aplicarse a regiones donde la cobertura nubosa es frecuente. En esos casos, la utilización de datos radar es más recomendable. Sin embargo, los métodos de clasificación utilizando datos radar no están tan bien establecidos y es necesario realizar más estudios científicos en este campo. Es por ello, que esta tesis se centra en la clasificación de cultivos mediante datos radar, concretamente datos aerotransportados AIRSAR y datos ASAR del satélite ENVISAT. El seguimiento de los cultivos mediante teledetección se basa en la estimación de parámetros biofísicos y su evolución en el tiempo. Estos parámetros son, entre otros, LAI (índice de área foliar), clorofila y biomasa. En esta tesis se han utilizado datos del satélite LANSAT-TM para la inversión de LAI, y datos ENVISAT-MERIS para la estimación de LAI y clorofila

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Sheoran, Arjun. "Land cover/use classification using optical and quad polarization radar imagery." Fairfax, VA : George Mason University, 2009. http://hdl.handle.net/1920/3462.

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Thesis (M.S.)--George Mason University, 2009. Vita: p. 130. Thesis director: Barry N. Haack. Submitted in partial fulfillment of the requirements for the degree of Master of Science in Geographic and Cartographic Sciences. Title from PDF t.p. (viewed June 10, 2009). Includes bibliographical references (p. 126-129). Also issued in print.

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Rask, Badih John. "Range resolved optical remote sensing using a continuous wave, pseudo-random modulated, CO2 heterodyne lidar backscattered from aerosols /." Full text open access at:, 1995. http://content.ohsu.edu/u?/etd,649.

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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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LOPES, FABIO J. da S. "Validação dos dados do satélite CALIPSO utilizando um sistema lidar de retroespalhamento elástico e o fotômetro solar da rede AERONET." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9997.

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Made available in DSpace on 2014-10-09T12:33:39Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T14:04:37Z (GMT). No. of bitstreams: 0 Tese (Doutoramento) IPEN/T Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP

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Chen, Ziyue. "Modelling 3D urban landscape ecology using airborne lidar data." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648551.

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Densham, Martin P. J. "Bathymetric mapping with QuickBird data." Thesis, Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/2121.

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Two algorithms are used to determine bathymetry in the littoral region using QuickBird multispectral satellite observations. The algorithms determine water-leaving radiance and convert this to water depth values. The first algorithm uses a ratio of two wavebands and the second uses the sum of several wavebands. Relative bathymetric errors are determined for the clear water of Looe Key (USA) and the turbid water of Plymouth Sound (UK). Bathymetric measurements from LIDAR and chart data are compared to derived depths to assess their accuracies. An amended version of the ratio method is proposed for use in turbid water to improve accuracy. The results show that the standard ratio and turbidity algorithms have a relative error of 11.7% and 16.5% respectively in clear water. In turbid water the average error of the turbidity algorithm is 11.6% and the amended ratio algorithm average error is 13%. Royal Navy

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Masonis, Sarah J. "An empirical study of the lidar ratio and its variability, with implications for determining climate forcing by satellite-borne lidar /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/10017.

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English, John Thomas. "Effectiveness of extracting water surface slopes from LIDAR data within the active channel : Sandy River, Oregon, USA /." Connect to title online (Scholars' Bank), 2008. http://hdl.handle.net/1794/9168.

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Argall, Philip Stephen. "Lidar studies of the middle atmosphere /." Title page, table of contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09pha686.pdf.

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Jacob, Alexander. "Radar and Optical Data Fusion for Object Based Urban Land Cover Mapping." Thesis, KTH, Geoinformatik och Geodesi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-45978.

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The creation and classification of segments for object based urban land cover mapping is the key goal of this master thesis. An algorithm based on region growing and merging was developed, implemented and tested. The synergy effects of a fused data set of SAR and optical imagery were evaluated based on the classification results. The testing was mainly performed with data of the city of Beijing China. The dataset consists of SAR and optical data and the classified land cover/use maps were evaluated using standard methods for accuracy assessment like confusion matrices, kappa values and overall accuracy. The classification for the testing consists of 9 classes which are low density buildup, high density buildup, road, park, water, golf course, forest, agricultural crop and airport. The development was performed in JAVA and a suitable graphical interface for user friendly interaction was created parallel to the development of the algorithm. This was really useful during the period of extensive testing of the parameter which easily could be entered through the dialogs of the interface. The algorithm itself treats the pixels as a connected graph of pixels which can always merge with their direct neighbors, meaning sharing an edge with those. There are three criteria that can be used in the current state of the algorithm, a mean based spectral homogeneity measure, a variance based textural homogeneity measure and fragmentation test as a shape measure. The algorithm has 3 key parameters which are the minimum and maximum segments size as well as a homogeneity threshold measure which is based on a weighted combination of relative change due to merging two segments. The growing and merging is divided into two phases the first one is based on mutual best partner merging and the second one on the homogeneity threshold. In both phases it is possible to use all three criteria for merging in arbitrary weighting constellations. A third step is the check for the fulfillment of minimum size which can be performed prior to or after the other two steps. The segments can then in a supervised manner be labeled interactively using once again the graphical user interface for creating a training sample set. This training set can be used to derive a support vector machine which is based on a radial base function kernel. The optimal settings for the required parameters of this SVM training process can be found from a cross-validation grid search process which is implemented within the program as well. The SVM algorithm is based on the LibSVM java implementation. Once training is completed the SVM can be used to predict the whole dataset to get a classified land-cover map. It can be exported in form of a vector dataset. The results yield that the incorporation of texture features already in the segmentation is superior to spectral information alone especially when working with unfiltered SAR data. The incorporation of the suggested shape feature however doesn’t seem to be of advantage, especially when taking the much longer processing time into account, when incorporating this criterion. From the classification results it is also evident, that the fusion of SAR and optical data is beneficial for urban land cover mapping. Especially the distinction of urban areas and agricultural crops has been improved greatly but also the confusion between high and low density could be reduced due to the fusion. Dragon 2 Project

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37

Grant, Richard Peter James Seton. "The establishment of a Lidar facility at Rhodes University." Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1001998.

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LIDAR is the optical equivalent of RADAR. A LIDAR facility has been established at Rhodes University using a flashlamp-pumped dye laser as the transmitter and a photomultiplier tube at the focus of a searchlight mirror as the receiver. The setting up of the receiver and transmitter as well as the design and construction of the photon counting electronics is described. The LIDAR has been used to measure aerosol scattering ratios and temperature profiles in the stratosphere and these results are presented with the algorithms and software used to reduce the data. Finally some recommendations are made for future work

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38

Lane, Dallas W. "Signal processing methods for airborne lidar bathymetry." Title page, table of contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09ENS/09ensl265.pdf.

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"August 2001." Includes bibliographical references (leaves 77-80). Examines the susceptibility of existing signal processing methods to errors and identifies other possible causes of depth error not accounted for by existing signal processing methods, by analysis of the detected laser return waveform data. Methods to improve depth accuracy are investigated.

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Foster, Michael S. "Using Lidar to geometrically-constrain signature spaces for physics-based target detection /." Online version of thesis, 2007. http://hdl.handle.net/1850/5827.

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40

Bamford, Karl J. "An investigation of optical radar and low coherence interferometry detection of precancerous tissue." Thesis, Cranfield University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341043.

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JESUS, WELLINGTON C. de. "Estudo de metodos de inversao em snesoriamento remoto com lasers." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9434.

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Made available in DSpace on 2014-10-09T12:26:47Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T14:00:25Z (GMT). No. of bitstreams: 0 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Dissertacao (Mestrado) IPEN/D Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP FAPESP:06/05182-6

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TORRES, ANI S. "Desenvolvimento de uma metodologia de calibracao independente para um lidar raman na obtencao e estudo de perfis de vapor d'agua atmosferico." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11764.

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Made available in DSpace on 2014-10-09T12:55:32Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T14:05:04Z (GMT). No. of bitstreams: 0 Tese (Doutoramento) IPEN/T Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Woithe, Jonathan Mark. "Optical studies of the mesospheric region." Title page, contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09PH/09phw847.pdf.

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Includes copies of articles co-authored by the author during the preparation of this thesis. Includes bibliographical references (leaves 233-245). A three-field photometer was employed at the University of Adelaide's Buckland Park field site to collect optical observations of the 557.7nm OI and 730nm OH airglow emissions on an almost continuous basis since May 1995 to May 2000, with observations made whenever the moon was not up.

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Ma, Ruijin. "Building model reconstruction from lidar data and aerial photographs /." Ann Arbor : UMI Dissertation Services, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1104114425.

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45

Neal, Kerry Ann. "A confocal Fabry-Perot interferometer for use in LIDAR receivers." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/neal/NealK1209.pdf.

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A series of crop rotations were evaluated for their impacts on soil-borne populations of root lesion nematodes, Pratylenchus neglectus. Population changes, measured as the ratio of P. neglectus adults counted at harvest to those counted at planting time, was recorded under a series of two-year rotations alternating winter wheat with either fallow, barley, pea, lentil, canola, and camelina. Fallow, barley, pea, and camelina were found to have a neutral effect on nematode populations (p < 0.001). Winter wheat and canola caused significant increases in populations, while lentils caused significant decreases (p < 0.001). Populations were sustained through winter following winter wheat and barley, but not canola, camelina, pea, lentil, or fallow treatments (p < 0.001). In addition to the rotation study, cultivars of barley and canola were evaluated for their resistance to P. neglectus. Greenhouse trials for barley showed significant differences among 19 cultivars tested (p < 0.001), with a 5-fold difference in P. neglectus multiplication separating the least- from the most resistant. Separation among cultivars was not found with canola (p = 0.20). The information gathered in this study will help Montana wheat growers better understand the impacts of their crop selections on this important pest.

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Serkan, Mert Kirkici Hulya. "Laser beam shaping optical system design methods and their application in edge-emitting semiconductor laser-based lidar systems." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Dissertations/Serkan_Mert_22.pdf.

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May, Nora Csanyi. "A rigorous approach to comprehensive performance analysis of state-of-the-art airborne mobile mapping systems." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1199309957.

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Kim, Sooyoung. "Individual tree species identification using LIDAR-derived crown structures and intensity data /." Thesis, Connect to this title online; UW restricted, 2008. http://hdl.handle.net/1773/5548.

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Parrish, Christopher E. "Analysis of airborne laser-scanning system configurations for detecting airport obstructions." View thesis, 2003. http://purl.fcla.edu/fcla/etd/UFE0000765.

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COSTA, RENATA F. da. "Estudo das propriedades opticas dos aerossois no estado de Sao Paulo com a tecnica de Lidar Raman." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9586.

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Made available in DSpace on 2014-10-09T12:28:19Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T13:56:45Z (GMT). No. of bitstreams: 0 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Dissertacao (Mestrado) IPEN/D Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP FAPESP:08/01954-0

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Dissertations / Theses on the topic 'Optical radar'

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