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Author : David Hysell
Publisher : Cambridge University Press
Page : 399 pages
File Size : 47,6 Mb
Release : 2018-03
Category : Science
ISBN : 9781107195431
This comprehensive, self-contained book covers everything needed to understand how radar signals are used to study Earth's environment.
Author : Andrea Benedetto,Lara Pajewski
Publisher : Springer
Page : 371 pages
File Size : 40,5 Mb
Release : 2015-04-07
Category : Science
ISBN : 9783319048130
This book, based on Transport and Urban Development COST Action TU1208, presents the most advanced applications of ground penetrating radar (GPR) in a civil engineering context, with documentation of instrumentation, methods and results. It explains clearly how GPR can be employed for the surveying of critical transport infrastructure, such as roads, pavements, bridges and tunnels and for the sensing and mapping of underground utilities and voids. Detailed attention is also devoted to use of GPR in the inspection of geological structures and of construction materials and structures, including reinforced concrete, steel reinforcing bars and pre/post-tensioned stressing ducts. Advanced methods for solution of electromagnetic scattering problems and new data processing techniques are also presented. Readers will come to appreciate that GPR is a safe, advanced, non destructive and noninvasive imaging technique that can be effectively used for the inspection of composite structures and the performance of diagnostics relevant to the entire life cycle of civil engineering works.
Author : Jennifer T. Bernhard
Publisher : Springer Nature
Page : 65 pages
File Size : 47,9 Mb
Release : 2022-05-31
Category : Technology & Engineering
ISBN : 9783031015359
This lecture explores the emerging area of reconfigurable antennas from basic concepts that provide insight into fundamental design approaches to advanced techniques and examples that offer important new capabilities for next-generation applications. Antennas are necessary and critical components of communication and radar systems, but sometimes their inability to adjust to new operating scenarios can limit system performance. Making antennas reconfigurable so that their behavior can adapt with changing system requirements or environmental conditions can ameliorate or eliminate these restrictions and provide additional levels of functionality for any system. For example, reconfigurable antennas on portable wireless devices can help to improve a noisy connection or redirect transmitted power to conserve battery life. In large phased arrays, reconfigurable antennas could be used to provide additional capabilities that may result in wider instantaneous frequency bandwidths, more extensive scan volumes, and radiation patterns with more desirable side lobe distributions. Written for individuals with a range of experience, from those with only limited prior knowledge of antennas to those working in the field today, this lecture provides both theoretical foundations and practical considerations for those who want to learn more about this exciting subject. Contents: Introduction / Definitions of Critical Parameters for Antenna Operation / Linkage Between Frequency Response and Radiation Characteristics: Implications for Reconfigurable Antennas / Methods for Achieving Frequency Response Reconfigurability / Methods for Achieving Polarization Reconfigurability / Methods for Achieving Radiation Pattern Reconfigurability / Methods for Achieving Compound Reconfigurable Antennas / Practical Issues for Implementing Reconfigurable Antennas / Conclusions and Directions for Future work
Author : United States. Environmental Science Services Administration
Publisher : Unknown
Page : 164 pages
File Size : 50,6 Mb
Release : 1968
Category : Environmental sciences
ISBN : UOM:39015021263317
Author : Anonim
Publisher : Unknown
Page : 700 pages
File Size : 54,6 Mb
Release : 1995
Category : Aeronautics
ISBN : UOM:39015038704915
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : Harold Mott
Publisher : John Wiley & Sons
Page : 327 pages
File Size : 45,8 Mb
Release : 2006-12-05
Category : Technology & Engineering
ISBN : 9780470079805
Discover the principles and techniques of remote sensing with polarimetric radar This book presents the principles central to understanding polarized wave transmission, scattering, and reception in communication systems and polarimetric and non-polarimetric radar. Readers gain new insight into the methods for remotely gathering data about the earth's surface and atmosphere with polarimetric synthetic-aperture radar and polarimetric interferometry, including the changes that take place with seasons, floods, earthquakes, and other natural phenomena. In particular, with the book's focus on polarimetric radars, readers discover how to exploit the many special features of these systems, which provide the maximum amount of information that can be obtained remotely with radar. Introductory-level coverage of electromagnetic wave propagation, antennas, radar and synthetic aperture radar, probability and random processes, and radar interferometry serves as a foundation for advancing to more complex material. A more advanced mathematical and technical treatment enables readers to fully grasp polarized wave transmission, propagation, and reception in communication systems and polarimetric-radar remote sensing. Readers will discover much new material in this text, including: Distinguishing between coherently-measured and incoherently-measured target matrices for power, recognizing that the two matrix types are not equivalent in representing targets Removing unpolarized components from the scattered wave and deriving a target matrix for classification from the resulting coherently-scattered wave Selecting an antenna polarization to maximize the contrast between desired and undesired depolarizing targets Problems ranging in complexity from introductory to challenging are presented throughout the text. Engineers will find this an ideal reference to help them fully utilize the powerful capabilities of polarimetric radar. It will also help agronomists, geographers, meteorologists, and other scientists who use remotely obtained data about the earth to evaluate procedures and better interpret the data. The book can also be tailored to both undergraduate and graduate courses in remote sensing, and recommendations are given for text material suitable for such courses.
Author : United States. Environmental Science Services Administration
Publisher : Unknown
Page : 164 pages
File Size : 40,8 Mb
Release : 1968
Category : Electronic
ISBN : MINN:30000010309254
Author : United States. Environmental Science Services Administration
Publisher : Unknown
Page : 170 pages
File Size : 42,7 Mb
Release : 1968
Category : Hydrology
ISBN : UCSD:31822005669213
Author : Fred E. Nathanson
Publisher : McGraw-Hill Companies
Page : 646 pages
File Size : 41,7 Mb
Release : 1969
Category : Technology & Engineering
ISBN : UOM:39015026525645
A true classic in the field, available once again, this widely respected source on radar design offers coverage of digital technology, weather radar, microburst detection, and digital correlators. Providing a broad look at modern theory as well as a review of all the development in practical equipment design and construction in recent years, this resource for radar engineers includes four chapters on equations and detection theory, plus seven on waveforms and signal processing.
Author : James R. Pfafflin,Edward N. Ziegler
Publisher : Taylor & Francis
Page : 650 pages
File Size : 45,9 Mb
Release : 1992
Category : Science
ISBN : 2881245048
Author : Jianqi Wu
Publisher : Springer
Page : 0 pages
File Size : 55,7 Mb
Release : 2019-07-24
Category : Technology & Engineering
ISBN : 9811076464
This book systematically describes advanced metric wave radar and its practical applications, offering a comprehensive introduction to the engineering design methods from the perspectives of system design, antenna/feed and transmit/receive subsystems, as well as mechanical structure design. Focusing on the height-finding method, it describes in detail how the super-resolution technique can be used to solve the problem of low-angle height finding in metric wave radar. It also discusses the anti-jamming method for the unique jamming environment. Further, it presents narrowband target recognition methods to overcome the limitations of narrow absolute bandwidth in metric wave radar and to further explore the technique’s potential. Cooperative detection for metric wave radar netting is also addressed, and the main experimental results are included. The book offers a valuable resource for professional engineers, researchers and teachers, as well as graduate students engaged in radar system engineering, electronic engineering, and signal processing.
Author : Sybil P. Parker,Robert A. Corbitt
Publisher : McGraw-Hill Companies
Page : 1500 pages
File Size : 48,5 Mb
Release : 1993
Category : Nature
ISBN : STANFORD:36105019193270
This reference work now includes 250 articles - many of them new to this volume - in all major environmental subjects of broad interest: from rainforests to hazardous waste and sewage treatment. It offers a complete overview of current environmental problems and the solutions needed to ultimately protect and preserve our environment. Numerous photographs, diagrams, charts, graphs, and line drawings supplement the text.
Author : Wendell L. Hercules
Publisher : Unknown
Page : 162 pages
File Size : 53,9 Mb
Release : 1962
Category : Environmental engineering
ISBN : CORNELL:31924003965328
Author : National Research Council,Division on Earth and Life Studies,Board on Atmospheric Sciences and Climate,Committee on the Evaluation of the Multifunction Phased Array Radar Planning Process
Publisher : National Academies Press
Page : 91 pages
File Size : 45,9 Mb
Release : 2008-09-14
Category : Science
ISBN : 9780309124324
The Multifunction Phased Array Radar (MPAR) is one potentially cost-effective solution to meet the surveillance needs and of several agencies currently using decades-old radar networks. These agencies including the National Oceanic and Atmospheric Administration s (NOAA) National Weather Service (NWS), the Federal Aviation Administration (FAA), the Department of Defense (DOD) and the Department of Homeland Security (DHS) have many and varied requirements and possible applications of modern radar technology. This book analyzes what is lacking in the current system, the relevant capabilities of phased array technology, technical challenges, cost issues, and compares possible alternatives. Both specific and overarching recommendations are outlined.
Author : Long Quoc Nguyen,Luyen Khac Bui,Xuan-Nam Bui,Hai Thanh Tran
Publisher : Springer Nature
Page : 549 pages
File Size : 42,7 Mb
Release : 2023-03-01
Category : Science
ISBN : 9783031204630
This book composes the proceedings of the international conference on Geo-Spatial Technologies and Earth Resources (GTER 2022) which was co-organized by Hanoi University of Mining and Geology and the International Society for Mine Surveying (ISM) held at Hanoi city on October 13–14, 2022. GTER 2022 is technically co-sponsored by Vietnam Mining Science and Technology Association (VMST), Vietnam Association of Geodesy, Cartography and Remote Sensing (VGCR), Vietnam National Coal-Mineral Industries Holding Corporation Limited (VINACOMIN), and the Dong Bac Corporation (NECO). GTER 2022 aims to bring together experts, researchers, engineers, and policymakers to discuss and exchange their knowledge and experiences in recent geospatial technologies, advances in mining and earth sciences.
