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Angular Resolution Beyond The Rayleigh Limit
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Book Synopsis Angular Resolution Beyond the Rayleigh Limit by : Aharon A. Ksienski
Download or read book Angular Resolution Beyond the Rayleigh Limit written by Aharon A. Ksienski and published by . This book was released on 1966 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of angular resolution is formulated in a statistical decision theoretic context. A tutorial discussion of decision theory and its application to resolution is presented, and an explicit signal processing radar system is derived whose resolving properties approach an optimum. Computer simulation tests show that the system is capable of reliably resolving targets as close as a quarter of a 3-db beamwidth in the presence of noise and system errors. (Author).
Book Synopsis Principles of Stellar Interferometry by : Andreas Glindemann
Download or read book Principles of Stellar Interferometry written by Andreas Glindemann and published by Springer Science & Business Media. This book was released on 2011-01-04 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The imaging process in stellar interferometers is explained starting from first principles on wave propagation and diffraction. Wave propagation through turbulence is described in detail using Kolmogorov statistics. The impact of turbulence on the imaging process is discussed both for single telescopes and for interferometers. Correction methods (adaptive optics and fringe tracking) are presented including wavefront sensing/fringe sensing methods and closed loop operation. Instrumental techniques like beam combination and visibility measurements (modulus and phase) as well as Nulling and heterodyne interferometry are described. The book closes with examples of observing programmes linking the theory with individual astrophysical programmes.
Book Synopsis Study of Application of Antenna Optimization Techniques by : G. O. Young
Download or read book Study of Application of Antenna Optimization Techniques written by G. O. Young and published by . This book was released on 1967 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research dealt with decision theoretic antenna processing systems and the development and application of a new coherence theory to optimum antenna system design. The objective was the development of techniques that would result in improved target parameter estimates and better detection and resolution capability than those achieved by conventional systems. A new theory was developed, called transcoherence theory. It can be used to determine the optimum amplitude and/or phase shading for an antenna that is intended as an information-gathering device. It is particularly useful when employed for the purpose of compensating for deleterious medium effects. The theory can also be used to find the coherence properties of sources, where these properties are essential to the specification of the a priori statistics of target signals and clutter. A relatively simple decision theoretic processor was built and found to improve angular resolution by at least a factor of four over that of conventional systems. The research studies and their results are documented in seven scientific reports and several papers. (Author).
Book Synopsis OAR Cumulative Index of Research Results by :
Download or read book OAR Cumulative Index of Research Results written by and published by . This book was released on 1967 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Antenna Processing for Surface Target Detection by : G. O. Young
Download or read book Antenna Processing for Surface Target Detection written by G. O. Young and published by . This book was released on 1968 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of antenna processing for surface target detection in clutter is considered in this report. The general problem of the hypothesis testing and estimating of N targets in clutter and noise is formulated by means of decision theory. The theory is applied to the case of a single, nonscintillating target with unknown a priori amplitude, phase, and location. The a priori statistics of these parameters are assumed, and target detection is accomplished by means of a generalized likelihood ratio test. The hypothesis test is instrumented for clutter as well as receiver noise. Both scintillating and nonscintillating clutter are considered. (Author).
Book Synopsis Radar Array Processing by : Simon Haykin
Download or read book Radar Array Processing written by Simon Haykin and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radar Array Processing presents modern techniques and methods for processingradar signals received by an array of antenna elements. With the recent rapid growth of the technology of hardware for digital signal processing, itis now possible to apply this to radar signals and thus to enlist the full power of sophisticated computational algorithms. Topics covered in detail here include: super-resolution methods of array signal processing as applied to radar, adaptive beam forming for radar, and radar imaging. This book will be of interest to researchers and studentsin the radar community and also in related fields such as sonar, seismology, acoustics and radio astronomy.
Book Synopsis Technical Abstract Bulletin by : Defense Documentation Center (U.S.)
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1967 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Business Service Check List written by and published by . This book was released on 1967 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of AFCRL Publications from 1 July 1966 to 30 September 1967 by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Bibliography of AFCRL Publications from 1 July 1966 to 30 September 1967 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1968 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography lists all in-house reports, journal articles, and contractor reports issued from 1 July 1966 to 30 September 1967. Part I lists all in-house reports by the series in which they were issued; Part II lists all in-house reports, journal articles, and contractor reports by the Laboratory responsible for their preparation. In Part I, the reports are listed numerically by series; in Part II, in-house reports and journal articles are listed alphabetically by author, and contractor reports are listed numerically by the AFCRL report number.
Book Synopsis Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1967-05 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soft X-Rays and Extreme Ultraviolet Radiation by : David Attwood
Download or read book Soft X-Rays and Extreme Ultraviolet Radiation written by David Attwood and published by Cambridge University Press. This book was released on 2000 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive book describes the fundamental properties of soft X-rays and extreme ultraviolet (EUV) radiation and discusses their applications in a wide variety of fields, including EUV lithography for semiconductor chip manufacture and soft X-ray biomicroscopy. The author provides a wealth of useful reference material such as electron binding energies, characteristic emission lines and photo-absorption cross-sections. The book will be of great interest to graduate students and researchers in engineering, physics, chemistry, and the ...
Download or read book Principles of Optics written by Max Born and published by Elsevier. This book was released on 2013-06-01 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light, Sixth Edition covers optical phenomenon that can be treated with Maxwell’s phenomenological theory. The book is comprised of 14 chapters that discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals. The text covers the elements of the theories of interference, interferometers, and diffraction. The book tackles several behaviors of light, including its diffraction when exposed to ultrasonic waves. The selection will be most useful to researchers whose work involves understanding the behavior of light.
Download or read book University Physics written by OpenStax and published by . This book was released on 2016-11-04 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. The text and images in this textbook are grayscale.
Book Synopsis Observatories in Earth Orbit and Beyond by : Y. Kondo
Download or read book Observatories in Earth Orbit and Beyond written by Y. Kondo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: When I became President of International Astronomical Union Commission 44 for the triennial period 1985-1988, several members of the Organizing Committee and I agreed that it would be a good idea for our Commission to host a conference on observatories in space in view of their increasingly important role in astronomi cal research. IAU Colloquium Number 123 "Observatories in Earth Orbit and Beyond" is the first colloquium sponsored by IAU Com mission 44 on Astronomy from Space, although Commission 44 has co-sponsored numerous colloquia and symposia in the past. The past two decades have seen a flourishing of astronomical observatories in space. Over a dozen orbiting observatories have opened up a new window on the universe, providing hitherto una vailable data in the electromagnetic spectral range from gamma-ray, X-ray, ultraviolet to infrared and radio. This has clearly demon strated the crucial nature of astronomical observations from space. The invited talks of present colloquium consist primarily of reviews of currently operating observatories in space, future observatories that have been approved by sponsoring government or space agencies, the launch systems of U.S.A., E.S.A., U.S.S.R. and Japan, discussions of various orbits and sites (such as the Moon), and alternate approaches in designing space observatories. Several panel discus sions addressed those issues as well as the major unsolved problems of astronomy. Contributed poster papers included descriptions of space observatories that are in planning stage.
Download or read book Progress in Optics written by and published by Elsevier. This book was released on 2011-09-21 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Optics
Book Synopsis 4D Electron Microscopy by : Ahmed H. Zewail
Download or read book 4D Electron Microscopy written by Ahmed H. Zewail and published by World Scientific. This book was released on 2010 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural phase transitions, mechanical deformations, and the embryonic stages of melting and crystallization are examples of phenomena that can now be imaged in unprecedented structural detail with high spatial resolution, and ten orders of magnitude as fast as hitherto. No monograph in existence attempts to cover the revolutionary dimensions that EM in its various modes of operation nowadays makes possible. The authors of this book chart these developments, and also compare the merits of coherent electron waves with those of synchrotron radiation. They judge it prudent to recall some important basic procedural and theoretical aspects of imaging and diffraction so that the reader may better comprehend the significance of the new vistas and applications now afoot. This book is not a vade mecum - numerous other texts are available for the practitioner for that purpose.
