Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Polarization Signature Research
Download Polarization Signature Research full books in PDF, epub, and Kindle. Read online Polarization Signature Research ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Polarization Signature Research by : Dennis H. Goldstein
Download or read book Polarization Signature Research written by Dennis H. Goldstein and published by . This book was released on 2003-02 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Documentation of work in Mueller matrix spectropolarimetry, Mueller matrix laser polarimetry, and near infrared imaging polarimetry is presented. Spectropolarimetric reflectometer instrumentation is described, and measurements made with this instrumentation on Spectralon and Federal Standard paint samples are given. Laser polarimeter measurements on sapphire and quartz plates with small birefringence are discussed. Results from an imaging near infrared rotating retarder Stokes polarimeter are presented.
Book Synopsis Generalizing from Educational Research by : Kadriye Ercikan
Download or read book Generalizing from Educational Research written by Kadriye Ercikan and published by Routledge. This book was released on 2009-01-26 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book frames the major challenge facing educational researchers as one of going beyond the mindless qualitative-quantitative divide and addressing the overarching/fundamental challenge of enriching and enlarging educational inquiry. It is a signature contribution to the field." - Clifton F. Conrad, University of Wisconsin-Madison, USA Tackling one of the most critical issues in education research today - how research methods are related to value and meaningfulness - this frontline volume achieves two purposes. First, it presents an integrated approach to educational inquiry that works toward a continuum instead of a dichotomy of generalizability, and looks at how this continuum might be related to types of research questions asked and how these questions should determine modes of inquiry. Second, it discusses and demonstrates the contributions of different data types and modes of research to generalizability of research findings, and to limitations of research findings that utilize a single approach. International leaders in the field take the discussion of generalizing in education research to a level where claims are supported using multiple types of evidence. The volume pushes the field in a different direction, where the focus is on creating meaningful research findings that are not polarized by qualitative versus quantitative methodologies. The integrative approach allows readers to better understand possibilities and shortcomings of different types of research.
Book Synopsis Polarization Diversity Active Imaging: Mueller Matrix Imaging Polarimetry of Spheres and Cones Estimation of the Refractive Index from the Polarization Signatures by : Russell Chipman
Download or read book Polarization Diversity Active Imaging: Mueller Matrix Imaging Polarimetry of Spheres and Cones Estimation of the Refractive Index from the Polarization Signatures written by Russell Chipman and published by . This book was released on 1998 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: A previous study presented interesting data indicating the ability of the Polarization Diversity Active Imaging techniques (PDAI) to measure polarization signatures of objects of simple shape (conical and spherical objects). Polarimetric signatures of such objects are obtained by applying a powerful decomposition technique, previously developed under earlier AFOSR contract. A complete description of the object in then obtained. Such decomposition can be used for detection, discrimination and classification of targets. This second phase has extended the study of the dynamic behavior of one of the previous targets (cone used as a re-entry vehicle mode.) By then rotating that sample target to make polarization movie, the evolution of the decomposed polarization signature can then the fully examined. The analysis performed for each position finally provides the dynamic behaviors of the target depending on either its orientation or the position of the detection system. The second goal of this phase was the development of a method for estimating the refractive index of a target from its Mueller matrix image. Our investigations show that the refractive index can be estimated either by using data resulting from the polar decomposition method or from the Mueller matrix image of the object after different steps of data processing. Such parameter is essential in order to progress in the understanding of these polarized high/material interactions.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309499321 Total Pages :135 pages Book Rating :4.3/5 (94 download)
Book Synopsis Assessment of the In-House Laboratory Independent Research at the Army's Research, Development, and Engineering Centers by : National Academies of Sciences, Engineering, and Medicine
Download or read book Assessment of the In-House Laboratory Independent Research at the Army's Research, Development, and Engineering Centers written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-02-23 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report evaluates the In-House Laboratory Independent Research (ILIR) conducted at the Research, Development, and Engineering Centers (RDECs) of the U.S. Army's Research, Development, and Engineering Command (RDECOM) during 2018. It reviews and offers recommendations for each of the eight areas of ILIR research: chemistry, computational sciences, electronics, life sciences, materials science, mechanical sciences, network sciences, and physics.
Download or read book Digest written by and published by . This book was released on 2005 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1984 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Research of the National Institute of Standards and Technology by :
Download or read book Journal of Research of the National Institute of Standards and Technology written by and published by . This book was released on 1997 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polarization Effects on Infrared Target Contrast by : Marcos Pontes
Download or read book Polarization Effects on Infrared Target Contrast written by Marcos Pontes and published by . This book was released on 1998-09-01 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis has been carried out of a data base of polarized long wave infrared images of the instrumented Research Vessel POINT SUR recorded over a period of two days during the EOPACE measurements series in San Diego Bay in 1996. The measurements were made from a land site on Point Loma with an AGA780 sensor with internally mounted polarization filters. The objectives of the analysis were to determine a possible influence of target aspect angle on the polarization signature, to compare polarization contrast improvement in San Diego Bay with previous measurements in the North Atlantic, and to validate by measurement the estimation of unpolarized signature from vertical and horizontal components. 5508 images representing 70 cases with vertical, horizontal and unpolarized sequences were analyzed. Using a horizontal polarizer, target to background contrast improvement was found with a mean of 1.08 (8%) compared with the 15% found in previous measurements. Estimated unpolarized signatures from vertical and horizontal components agreed with unpolarized measurements with a slope coefficient of .85 to .99. Target signature for major ship facets and for total ship showed no discernable degree of polarization. A total of 37 IDL programs developed for this analysis can be assembled as a package for future data processing.
Book Synopsis Polarization Signatures in Vector Space by : Diane Krupp Beamer
Download or read book Polarization Signatures in Vector Space written by Diane Krupp Beamer and published by . This book was released on 2018 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of polarimetric information to enhance the identification process for unresolved and unknown targets in GEO orbit is quite rare. The majority of observations made of objects at that distance are spectral measurements, without the polarization information that is available in the same stream of photons being captured. It is proposed to use polarimetric signatures to enhance the speed and accuracy of the identification of unknown objects. Three methods of polarization signatures are proposed. First, the standard Stokes signature plotted as a function of solar phase angle is recommended. But beyond that, two other methods are proposed to help qualitative and quantitative assessment of the unknown target. The second method is the use of vector space, a ratio of one Stokes parameter to another in all combinations possible (six spaces), plotted against the solar phase angle in a similar manner to the Stokes signatures. The third method is novel, using a technique borrowed from astronomers who characterize distant stars based on color-color analysis of the intensity ratios of celestial objects. A statistical method of analyzing the resulting object characterization is also proposed, which is the Bhattacharyya distance, a non-Euclidean method to characterize the clusters produced by the third method. The experiments were conducted comparing simple geometries with one another to determine if polarization could differentiate simple geometries. Next different materials and surfaces were compared with one another to test polarization as a differentiator of the materials. Third, two complex models made up of three simple geometries that are representative of satellite construction were built and tested by the same three methods, to differentiate them from each other based on polarization signatures. Last, a third composite, different than both previous composites was built, and the method tested to see if it would identify the geometry most dissimilar to the new object so that a selection process could be created. Each of the polarization methods tested was successful in differentiating geometry, material, surface configuration, and complex composite geometries made up of the simpler geometries tested. Polarization signatures are ubiquitous and consistent. It was found that the peaks and valleys observed in the signatures of compound objects were caused by the geometry and material of the simpler parts making up the complex object. A selection procedure was demonstrated based on identifying the most dissimilar object of two choices, and eliminating it. Polarization signatures were capable of differentiating which objects were most like and most dissimilar to the test object. In conclusion, using polarimetry as an analytical tool to help identify unresolved objects in space is potentially an excellent process that would complement current methods of spectral analysis.
Book Synopsis Analysis of Hyperspectral Data Using Polarimetric Characteristics by : David S. Petri
Download or read book Analysis of Hyperspectral Data Using Polarimetric Characteristics written by David S. Petri and published by . This book was released on 1996-12-01 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The utility of polarimetric reflectance characteristics of targets and background surfaces in the analysis of hyperspectral imagery data is investigated. A technique is proposed for filtering a data hypercube of an imaged scene to select targets for subsequent analysis using standard hyperspectral signature matching techniques, thereby reducing image analysis time. An experimental study to measure polarization characteristics of reflected light from various surfaces in order to determine wavelengths for maximum and minimum intensity differences between polarized reflectance values is proposed. A second study is outlined for collection of simulated hyperspectral imagery that would attempt to validate the proposed filtering technique. A research of past studies indicate that useful polarization signature components are present for many targets and target materials. Additionally, backgrounds composed of grass, trees, dirt and clouds generate very little polarized components making detection of targets using polarization signatures feasible.
Book Synopsis Computational Nanophotonics by : Sarhan Musa
Download or read book Computational Nanophotonics written by Sarhan Musa and published by CRC Press. This book was released on 2018-10-08 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference offers tools for engineers, scientists, biologists, and others working with the computational techniques of nanophotonics. It introduces the key concepts of computational methods in a manner that is easily digestible for newcomers to the field. The book also examines future applications of nanophotonics in the technical industry and covers new developments and interdisciplinary research in engineering, science, and medicine. It provides an overview of the key computational nanophotonics and describes the technologies with an emphasis on how they work and their key benefits.
Author :M. Landi Degl'Innocenti Publisher :Springer Science & Business Media ISBN 13 :1402024150 Total Pages :899 pages Book Rating :4.4/5 (2 download)
Book Synopsis Polarization in Spectral Lines by : M. Landi Degl'Innocenti
Download or read book Polarization in Spectral Lines written by M. Landi Degl'Innocenti and published by Springer Science & Business Media. This book was released on 2006-05-17 with total page 899 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific research based on spectropolarimetric techniques is undergoing a phase of rapid growth. Instruments of unprecedented sensitivity are nowadays available, particularly for solar observations. To fully exploit the rich diagnostic content of such observations, it is necessary to understand the physical mechanisms involved in the generation and transfer of polarized radiation in astrophysical (or laboratory) plasmas. After an introductory part based on classical physics, this book tackles the subject by a rigorous quantum-mechanical approach. The transfer equations for polarized radiation and the statistical equilibrium equations for the atomic density matrix are derived directly from the principles of Quantum Electrodynamics. The two sets of equations are then used to present a number of applications, mainly concerning the diagnostics of solar magnetic fields. This book is primarily addressed to scientists working in the field of spectropolarimetry. It may also serve as a textbook for a course at the graduate or advanced undergraduate level.
Book Synopsis Polarized Light by : Dennis H. Goldstein
Download or read book Polarized Light written by Dennis H. Goldstein and published by CRC Press. This book was released on 2017-12-19 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polarized light is a pervasive influence in our world—and scientists and engineers in a variety of fields require the tools to understand, measure, and apply it to their advantage. Offering an in-depth examination of the subject and a description of its applications, Polarized Light, Third Edition serves as a comprehensive self-study tool complete with an extensive mathematical analysis of the Mueller matrix and coverage of Maxwell’s equations. Links Historical Developments to Current Applications and Future Innovations This book starts with a general description of light and continues with a complete exploration of polarized light, including how it is produced and its practical applications. The author incorporates basic topics, such as polarization by refraction and reflection, polarization elements, anisotropic materials, polarization formalisms (Mueller–Stokes and Jones) and associated mathematics, and polarimetry, or the science of polarization measurement. New to the Third Edition: A new introductory chapter Chapters on: polarized light in nature, and form birefringence A review of the history of polarized light, and a chapter on the interference laws of Fresnel and Arago—both completely re-written A new appendix on conventions used in polarized light New graphics, and black-and-white photos and color plates Divided into four parts, this book covers the fundamental concepts and theoretical framework of polarized light. Next, it thoroughly explores the science of polarimetry, followed by discussion of polarized light applications. The author concludes by discussing how our polarized light framework is applied to physics concepts, such as accelerating charges and quantum systems. Building on the solid foundation of the first two editions, this book reorganizes and updates existing material on fundamentals, theory, polarimetry, and applications. It adds new chapters, graphics, and color photos, as well as a new appendix on conventions used in polarized light. As a result, the author has re-established this book’s lofty status in the pantheon of literature on this important field.
Book Synopsis Active Microwave Workshop Report by : Richard E. Matthews
Download or read book Active Microwave Workshop Report written by Richard E. Matthews and published by . This book was released on 1975 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radar Polarimetry for Geoscience Applications by : Fawwaz Tayssir Ulaby
Download or read book Radar Polarimetry for Geoscience Applications written by Fawwaz Tayssir Ulaby and published by Artech House Remote Sensing Li. This book was released on 1990 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers the only consolidated reference on radar polarimetry design, analysis, and application and explains the most recent development in polarization system design and application. Illustrated with 150 figures, 10 tablets, and 9 full-color SAR images.
Book Synopsis Polarimetric Remote Sensing in the Visible to Near Infrared by : James R. Shell
Download or read book Polarimetric Remote Sensing in the Visible to Near Infrared written by James R. Shell and published by . This book was released on 2005 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Polarization adds another dimension to the spatial intensity and spectral information typically acquired in remote sensing. Polarization imparted by surface reflections contains unique and discriminatory signatures which may augment spectral target-detection techniques. Benefits such as improving man-made object detection are often touted, as well as possible improvements to spectral algorithms used for detection and identification. However, virtually all efforts fail to cast polarimetric remote sensing within a cohesive framework in which a priori prediction of polarized radiance are made, as is done with spectral remote sensing techniques. This is due, in part, to the challenges of measuring and representing polarization signatures. This research develops the governing radiometric equation for polarimetric remote sensing, illustrating the role of the polarimetric bidirectional reflectance distribution function (pBRDF). Using the governing radiometric equation as a basis, a technique for quantifying the pBRDF of background materials is presented. The measurement technique enables the generation of pBRDF as a function of the ground separation distance (GSD). Empirical data from employing the technique are fit to a pBRDF model. The model enables extrapolation of results to arbitrary illumination and viewing conditions throughout the visible to near infrared, all as a function of GSD. A target material pBRDF model is also developed which enables the pBRDF representation of spatially homogeneous surfaces, typical of man-made materials. This model uses an unpolarized BRDF model as the basis, and generalizes the representation while enabling polarization. BRDF model parameters are determined from an existing database of BRDF measurements, which enables 'polarization' of the database. The quantification and understanding of target and background material polarization signatures is a prerequisite for exploring methods of fusing polarimetric and spectral information. This work advances this understanding and lays the foundation for spectral-polarimetric target detection and algorithm development"--Abstract.
Book Synopsis Multi-band Polarization Imaging and Applications by : Yongqiang Zhao
Download or read book Multi-band Polarization Imaging and Applications written by Yongqiang Zhao and published by Springer. This book was released on 2016-03-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the optical multi-band polarization imaging theory and the utilization of the multi-band polarimetric information for detecting the camouflage object and the optical hidden marker, and enhancing the visibility in bad weather and water. The book describes systematically and in detail the basic optical polarimetry theory; provides abundant multi-band polarimetric imaging experiment data; and indicates practical evaluation methods for designing the multi-band polarization imager, for analyzing and modeling the object’s multi-band polarization characteristics, and for enhancing the vision performance in scattering media. This book shows the latest research results of multi-band polarimetric vision, especially in camouflage object detection, optical hidden marker detection and multi-band polarimetric imagery fusion. From this book, readers can get a complete understanding about multi-band polarimetric imaging and its application in different vision tasks.
