Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Heterodyne Systems And Technology full books in PDF, epub, and Kindle. Read online Heterodyne Systems And Technology ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author :
Publisher :
ISBN 13 :
Total Pages : 634 pages
Book Rating : 4.3/5 (243 download)
Download or read book Heterodyne Systems and Technology written by and published by . This book was released on 1977 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (317 download)
Download or read book Heterodyne Systems and Technology, Part 1 written by and published by . This book was released on 1980 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Nejat Ince
Publisher : Springer Science & Business Media
ISBN 13 : 1461535786
Total Pages : 613 pages
Book Rating : 4.4/5 (615 download)
Download or read book Digital Satellite Communications Systems and Technologies written by A. Nejat Ince and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the space activities of the last three decades satellite communications (SATCOM) has found the widest application in meeting both civil and military communications requirements. Several international, regional and national SATCOM systems of increasing capacity, capability and complexity have been and are being implemented over the years. The latest versions are utilizing such concepts as spot beams, processing transponders in SS-TDMA and operations in different frequency bands including the EHF band. On the military side, the United States of America, the United Kingdom, France and NATO (the North Atlantic Treaty Organisation) have been the only owners and operators of military SATCOM systems in the West. The systems in being and under development use satellites and ground terminals with characteristics which differ from the civilian ones with respect to frequency bands utilised and survivability and interoperability. The SATCOM has given the military users the potential of having much-needed mobility, flexibility and survivability in strategic and tactical communications for land, sea and air operations. It must, however, be said particularly for the military SATCOM systems that they have been evolved in big jumps, both in time and capability, each jump involving the deployment of two or three often specially designed large satellites, large expenses and rather traumatic transition between jumps. Despite these undesirable features these systems did not have the required degree of suevivability and flexibility.
Author :
Publisher :
ISBN 13 :
Total Pages : 604 pages
Book Rating : 4.:/5 (319 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chinlon Lin
Publisher : Springer Science & Business Media
ISBN 13 : 9401170355
Total Pages : 773 pages
Book Rating : 4.4/5 (11 download)
Download or read book Optoelectronic Technology and Lightwave Communications Systems written by Chinlon Lin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since the invention of the transistor, semiconductor-based microelec tronics has made a revolutionary impact on the information society, as evi dent from the widespread application of microprocessor-based technology in our modern society. The next wave of modern information technology, after transistors and microelectronics, is that oflasers and micro-optoelectronics. Optoelectronics, or optical electronics, based on lasers and related modern optical technology, has also become a very important field of science and technology in the past 20 years. Electronics or microelectronics deals with (micro)electronic devices and components for generation, transmission, and processing of electronic sig nals. In contrast, in optoelectronics we deal with optoelectronic devices and components for the generation, transmission, and processing of lightwave signals. It is the interaction of lightwaves (photons) with matter that shows the uniqueness of optoelectronic technology; optical absorption and scat tering, optical gain and amplification, material and waveguide dispersion, nonlinear optical effects, etc., are very much dependent on the material's intrinsic properties and the lightwave propagation effects.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309302196
Total Pages : 321 pages
Book Rating : 4.3/5 (93 download)
Download or read book Laser Radar written by National Research Council and published by National Academies Press. This book was released on 2014-03-14 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's world, the range of technologies with the potential to threaten the security of U.S. military forces is extremely broad. These include developments in explosive materials, sensors, control systems, robotics, satellite systems, and computing power, to name just a few. Such technologies have not only enhanced the capabilities of U.S. military forces, but also offer enhanced offensive capabilities to potential adversaries - either directly through the development of more sophisticated weapons, or more indirectly through opportunities for interrupting the function of defensive U.S. military systems. Passive and active electro-optical (EO) sensing technologies are prime examples. Laser Radar considers the potential of active EO technologies to create surprise; i.e., systems that use a source of visible or infrared light to interrogate a target in combination with sensitive detectors and processors to analyze the returned light. The addition of an interrogating light source to the system adds rich new phenomenologies that enable new capabilities to be explored. This report evaluates the fundamental, physical limits to active EO sensor technologies with potential military utility; identifies key technologies that may help overcome the impediments within a 5-10 year timeframe; considers the pros and cons of implementing each existing or emerging technology; and evaluates the potential uses of active EO sensing technologies, including 3D mapping and multi-discriminate laser radar technologies.
Author :
Publisher : Information Gatekeepers Inc
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4./5 ( download)
Download or read book Fc-3 Current Topics in Fiber Optic Technologies and Their Applications written by and published by Information Gatekeepers Inc. This book was released on with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D.K. Killinger
Publisher : Springer
ISBN 13 : 3540395520
Total Pages : 390 pages
Book Rating : 4.5/5 (43 download)
Download or read book Optical and Laser Remote Sensing written by D.K. Killinger and published by Springer. This book was released on 2013-06-29 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of optical and laser remote sensing has grown rapidly in recent years. This dynamic growth has been stimulated not only by technological advances in lasers, detectors, and optical system design, but also by the potential application of remote sensing systems to a wide variety of atmo spheric measurements. Optical and laser remote sensing can allow single ended measurement capability not offered by conventional point-detection techniques. While many past measurements have been associated with labo ratory research. practical systems have recently been developed which are capable of remotely detecting. measuring. and tracking a wide range of molecular and atomic species in the atmosphere with concentrations of parts per billion and at ranges over 100 km. This book is a compilation of papers which represent an overview of the present state of development of optical and laser remote sensing tech nology. The subjects covered include both passive and active remote sen sing techniques in the UV, visible, and IR spectral regions. related laser and detector technology, and atmospheric propagation and system analysis considerations. While the papers do not constitute an exhaustive treat ment of the excellent research being conducted in this field, they are representative of the wide diversity of present efforts. It is hoped that the reader will gain a general understanding of the current research in optical and laser remote sensing as well as an overview of current systems development.
Author : Michael J. Kavaya
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.0/5 ( download)
Download or read book Tenth Biennial Coherent Laser Radar Technology and Applications Conference written by Michael J. Kavaya and published by . This book was released on 1999 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 10th conference on coherent laser radar technology and applications is the latest in a series beginning in 1980, which provides a forum for exchange of information on recent events, current status, and future directions of coherent laser radar (or lidar or lader) technology and applications. This conference emphasizes the latest advancements in the coherent laser radar field, including theory, modeling, components, systems, instrumentation, measurements, calibration, data processing techniques, operational uses, and comparisons with other remote sensing technologies.
Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
Publisher :
ISBN 13 :
Total Pages : 1080 pages
Book Rating : 4.E/5 ( download)
Download or read book Japanese Science and Technology, 1983-1984 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch and published by . This book was released on 1985 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Xizheng Ke
Publisher : Springer Nature
ISBN 13 : 9811679010
Total Pages : 387 pages
Book Rating : 4.8/5 (116 download)
Download or read book Adaptive Optics Theory and Its Application in Optical Wireless Communication written by Xizheng Ke and published by Springer Nature. This book was released on 2022-03-23 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces in detail the theory of adaptive optics and its correction technology for light wave distortion in wireless optical communication. It discusses the adaptive control algorithm of wavefront distortion, proportional+integral control algorithm and iterative control algorithm, and double fuzzy adaptive PID control algorithm. It also covers the SPGD algorithm of adaptive optics correction, deformable mirrors eigenmode method of wavefront aberration correction, vortex beam wavefront detecting wavefront aberration correction, liquid crystal spatial light modulator wavefront correction, different wavelengths of Gaussian beam transmission wavefront differences in the atmospheric turbulence and correction and with wavefront tilt correction adaptive optics wavefront aberration correction. Various distortion correction methods are verified by experiments and the experimental results are analyzed. This book is suitable for engineering and technical personnel engaged in wireless optical communication, college teachers, graduate students and senior undergraduate students.
Author : Rodney L. Spence
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (317 download)
Download or read book Optical Communications and a Comparison of Optical Technologies for a High Data Rate Return Link from Mars written by Rodney L. Spence and published by . This book was released on 1993 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The important principles of direct- and heterodyne-detection optical free-space communications are reviewed. Signal-to-noise-ratio (SNR) and bit-error-rate (BER) expressions are derived for both the direct-detection and heterodyne-detection optical receivers. For the heterodyne system, performance degradation resulting from received-signal and local oscillator-beam misalignment and laser phase noise is analyzed. Determination of interfering background power from local and extended background sources is discussed. The BER performance of direct- and heterodyne-detection optical links in the presence of Rayleigh-distributed random pointing and tracking errors is described. Finally, several optical systems employing Nd:YAG, GaAs, and CO2 laser sources are evaluated and compared to assess their feasibility in providing high-data-rate (10- to 1000-Mbps) Mars-to-Earth communications.
Author : Masataka Nakazawa
Publisher : Springer Science & Business Media
ISBN 13 : 3642104193
Total Pages : 337 pages
Book Rating : 4.6/5 (421 download)
Download or read book High Spectral Density Optical Communication Technologies written by Masataka Nakazawa and published by Springer Science & Business Media. This book was released on 2010-08-12 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of Internet traf?c in recent years surpassed the prediction of one decade ago. Data stream in individual countries already reached terabit/s level. To cope with the petabit class demands of traf?c in coming years the communication engineers are required to go beyond the incremental improvement of today’s technology. A most promising breakthrough would be the introduction of modulation f- mats enabling higher spectral ef?ciency than that of binary on–off keying scheme, virtually the global standard of ?ber-optic communication systems. In wireless communication systems, techniques of high spectral density modulation have been well developed, but the required techniques in optical frequency domain are much more complicated because of the heavier ?uctuation levels. Therefore the past trials of coherent optical modulation/detection schemes were not successful. However, the addition of high-speed digital signal processing technology is the fundam- tal difference between now and two decades ago, when trials of optical coherent communication systems were investigated very seriously. This approach of digital coherent technology has attracted keen interest among communication specialists, as indicated by the rapid increase in the pioneering presentations at the post-deadline sessions of major international conferences. For example, 32 terabit/s transmission in a ?ber experiment based on this technology was reported in post-deadline session of Optical Fiber Communication Conference (OFC) 2009. The advancement of the digital coherent technologies will inevitably affect the network architecture in terms of the network resource management for the new generation photonic networks, rather than will simply provide with huge transmission capacity.
Author :
Publisher :
ISBN 13 :
Total Pages : 1408 pages
Book Rating : 4.3/5 (243 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1981 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Xizheng Ke
Publisher : Springer Nature
ISBN 13 : 9819715229
Total Pages : 1881 pages
Book Rating : 4.8/5 (197 download)
Download or read book Handbook of Optical Wireless Communication written by Xizheng Ke and published by Springer Nature. This book was released on with total page 1881 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jianjun Yu
Publisher : Springer Nature
ISBN 13 : 9811631603
Total Pages : 275 pages
Book Rating : 4.8/5 (116 download)
Download or read book Broadband Terahertz Communication Technologies written by Jianjun Yu and published by Springer Nature. This book was released on 2021-06-28 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the comprehensive knowledge and latest progress in broadband terahertz (THz) technology. THz communication technology is believed to be one of the major choices that succeed the fifth-generation (5G) communication technology. With years of efforts, the author’s team has created a number of world records in the generation, transmission, and reception of ultra wideband THz signal, realizing the MIMO transmission and reception of THz communication, the THz signal transmission with communication capacity of 1 Tbit / s, and the optical fiber and THz integrated transmission. A variety of linear and nonlinear algorithms for multi-carrier and single-carrier THz communication systems are developed, which greatly improves the transmission performance of broadband systems. The book covers in details the broadband THz signal generation, long-distance transmission, and high sensitivity detection. It is of great reference value for researchers, engineers, and graduate students in optical and wireless communications.
