Scientific and Technical Aerospace Reports
Author :
Publisher :
Page : 464 pages
File Size : 16,88 MB
Release : 1995
Category : Aeronautics
ISBN :
Author :
Publisher :
Page : 464 pages
File Size : 16,88 MB
Release : 1995
Category : Aeronautics
ISBN :
Author :
Publisher :
Page : 322 pages
File Size : 50,97 MB
Release : 1989
Category : Science
ISBN :
Author :
Publisher :
Page : 620 pages
File Size : 35,10 MB
Release : 1991-12
Category : Science
ISBN :
Author : W. Pam Siriwongpairat
Publisher : John Wiley & Sons
Page : 240 pages
File Size : 16,18 MB
Release : 2007-11-16
Category : Technology & Engineering
ISBN : 0470179759
The only book that provides full coverage of UWB multiband OFDM technology Ultra-wideband (UWB) has emerged as a technology that offers great promise to satisfy the growing demand for low-cost, high-speed digital networks. The enormous bandwidth available, the potential for high data rates, and the promise for small size and low processing power with reduced implementation cost all present a unique opportunity for UWB to become a widely adopted radio solution for future wireless home networking technology. Ultra-Wideband Communications Systems is the first book to provide comprehensive coverage of the fundamental and advanced issues related to UWB technology, with a particular focus on multiband orthogonal frequency division multiplexing (multiband OFDM). The multiband OFDM approach was a leading method in the IEEE 802.15.3astandard and has recently been standardized by ECMA International. The book also explores several major advanced state-of-the-art technologies to enhance the performance of the standardized multiband OFDM approach. Additional coverage includes: * Characteristics of UWB channels * An overview of UWB single-band and multiband OFDM approaches * MIMO multiband OFDM * Performance characterization * Performance under practical considerations * Differential multiband OFDM * Power-controlled channel allocation * Cooperative UWB multiband OFDM Complete with pointers for future research opportunities to enhance the performance of UWB multiband OFDM technology over current and future wireless networks, this is an indispensable resource for graduate students, engineers, and academic and industrial researchers involved with UWB.
Author : Harry R. Anderson
Publisher : John Wiley & Sons
Page : 532 pages
File Size : 24,62 MB
Release : 2003-03-14
Category : Technology & Engineering
ISBN : 9780470844380
Drahtlose Systeme mit fester Bandbreite sind eine mögliche Technologie, mit der Endnutzer im privaten oder geschäftlichen Bereich an breitbandige Internet- und andere Dienste angebunden werden können. In diesem Werk finden Sie alle wesentlichen Informationen über solche Systeme. - drahtlose Systeme mit fester Bandbreite sind billiger und schneller anwendbar als traditionelle Glasfaser- oder telefongebundene Lösungen - Netzwerk mit fester Bandbreite kann viel größere Datenraten zur Verfügung stellen als die derzeit im Kommen befindlichen zellularen Systeme der dritten und vierten Generation - hier werden zugrunde liegende Prinzipien kurz und knapp eingeführt sowie fortgeschrittene Netzwerke, Vielfachzugang und Techniken für die Funkschnittstelle besprochen - drahtlose Systeme mit fester Bandbreite werden im Kontext der zuvor erläuterten Grundgedanken erklärt - besprochen wird der Entwurf und die Inbetriebnahme der Systeme
Author : Walt Boyes
Publisher : Butterworth-Heinemann
Page : 929 pages
File Size : 11,21 MB
Release : 2009-11-25
Category : Technology & Engineering
ISBN : 0080941885
The discipline of instrumentation has grown appreciably in recent years because of advances in sensor technology and in the interconnectivity of sensors, computers and control systems. This 4e of the Instrumentation Reference Book embraces the equipment and systems used to detect, track and store data related to physical, chemical, electrical, thermal and mechanical properties of materials, systems and operations. While traditionally a key area within mechanical and industrial engineering, understanding this greater and more complex use of sensing and monitoring controls and systems is essential for a wide variety of engineering areas--from manufacturing to chemical processing to aerospace operations to even the everyday automobile. In turn, this has meant that the automation of manufacturing, process industries, and even building and infrastructure construction has been improved dramatically. And now with remote wireless instrumentation, heretofore inaccessible or widely dispersed operations and procedures can be automatically monitored and controlled. This already well-established reference work will reflect these dramatic changes with improved and expanded coverage of the traditional domains of instrumentation as well as the cutting-edge areas of digital integration of complex sensor/control systems. - Thoroughly revised, with up-to-date coverage of wireless sensors and systems, as well as nanotechnologies role in the evolution of sensor technology - Latest information on new sensor equipment, new measurement standards, and new software for embedded control systems, networking and automated control - Three entirely new sections on Controllers, Actuators and Final Control Elements; Manufacturing Execution Systems; and Automation Knowledge Base - Up-dated and expanded references and critical standards
Author : Boris Lembrikov
Publisher : BoD – Books on Demand
Page : 458 pages
File Size : 19,29 MB
Release : 2011-08-01
Category : Technology & Engineering
ISBN : 9533073241
Ultra wideband (UWB) communication systems are characterized by high data rates, low cost, multipath immunity, and low power transmission. In 2002, the Federal Communication Commission (FCC) legalized low power UWB emission between 3.1 GHz and 10.6 GHz for indoor communication devices stimulating rapid development of UWB technologies and applications. The proposed book Novel Applications of the UWB Technologies consists of 5 parts and 20 chapters concerning the general problems of UWB communication systems, and novel UWB applications in personal area networks (PANs), medicine, radars and localization systems. The book will be interesting for engineers and researchers occupied in the field of UWB technology.
Author : Theodore S. Rappaport
Publisher : Cambridge University Press
Page : 734 pages
File Size : 18,67 MB
Release : 2024-02-08
Category : Technology & Engineering
ISBN : 1009489828
Now reissued by Cambridge University Press, the updated second edition of this definitive textbook provides an unrivaled introduction to the theoretical and practical fundamentals of wireless communications. Key technical concepts are developed from first principles, and demonstrated to students using over 50 carefully curated worked examples. Over 200 end-of-chapter problems, based on real-world industry scenarios, help cement student understanding. The book provides a thorough coverage of foundational wireless technologies, including wireless local area networks (WLAN), 3G systems, and Bluetooth along with refreshed summaries of recent cellular standards leading to 4G and 5G, insights into the new areas of mobile satellite communications and fixed wireless access, and extra homework problems. Supported online by a solutions manual and lecture slides for instructors, this is the ideal foundation for senior undergraduate and graduate courses in wireless communications.
Author : Mehmet Safak
Publisher : John Wiley & Sons
Page : 914 pages
File Size : 30,14 MB
Release : 2017-04-17
Category : Technology & Engineering
ISBN : 111909125X
This is a modern textbook on digital communications and is designed for senior undergraduate and graduate students, whilst also providing a valuable reference for those working in the telecommunications industry. It provides a simple and thorough access to a wide range of topics through use of figures, tables, examples and problem sets. The author provides an integrated approach between RF engineering and statistical theory of communications. Intuitive explanations of the theoretical and practical aspects of telecommunications help the reader to acquire a deeper understanding of the topics. The book covers the fundamentals of antennas, channel modelling, receiver system noise, A/D conversion of signals, PCM, baseband transmission, optimum receiver, modulation techniques, error control coding, OFDM, fading channels, diversity and combining techniques, MIMO systems and cooperative communications. It will be an essential reference for all students and practitioners in the electrical engineering field.
Author : Sawasd Tantaratana
Publisher : Institute of Electrical & Electronics Engineers(IEEE)
Page : 764 pages
File Size : 24,18 MB
Release : 1998
Category : Cell phones
ISBN :
These selected readings bring together introductory and advanced papers on various wireless applications of spread spectrum technology. The papers are grouped into sections according to the application areas: spread-spectrum technology, cellular mobile systems, satellite communications, wireless local area networks, and the global positioning system (GPS).