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High Frequency Radio Communications
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Book Synopsis Advanced High-frequency Radio Communications by : Eric E. Johnson
Download or read book Advanced High-frequency Radio Communications written by Eric E. Johnson and published by Artech House Publishers. This book was released on 1997 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date, comprehensive reference and planner's guide presents an in-depth description of automated HF communications.
Book Synopsis Third-generation and Wideband HF Radio Communications by : Eric E. Johnson
Download or read book Third-generation and Wideband HF Radio Communications written by Eric E. Johnson and published by Artech House. This book was released on 2013 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wideband HF. Book jacket.
Book Synopsis HF Communications by : Nicholas M Maslin
Download or read book HF Communications written by Nicholas M Maslin and published by CRC Press. This book was released on 2017-06-30 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communications using the high frequency spectrum (2-30 MHz) have experienced a considerable resurgence. In recent years, powerful microcomputers and VLSI technology have greatly enhanced the prospects of overcoming many of the unique problems that formerly afflicted the HF systems More...designer. The aim of this book, therefore, is to provide a fi
Book Synopsis High Frequency Communication and Sensing by : Ahmet Tekin
Download or read book High Frequency Communication and Sensing written by Ahmet Tekin and published by CRC Press. This book was released on 2018-09-03 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Frequency Communication and Sensing: Traveling-Wave Techniques introduces novel traveling wave circuit techniques to boost the performance of high-speed circuits in standard low-cost production technologies, like complementary metal oxide semiconductor (CMOS). A valuable resource for experienced analog/radio frequency (RF) circuit designers as well as undergraduate-level microelectronics researchers, this book: Explains the basics of high-speed signaling, such as transmission lines, distributed signaling, impedance matching, and other common practical RF background material Promotes a dual-loop coupled traveling wave oscillator topology, the trigger mode distributed wave oscillator, as a high-frequency multiphase signal source Introduces a force-based starter mechanism for dual-loop, even-symmetry, multiphase traveling wave oscillators, presenting a single-loop version as a force mode distributed wave antenna (FMDWA) Describes higher-frequency, passive inductive, and quarter-wave-length-based pumped distributed wave oscillators (PDWOs) Examines phased-array transceiver architectures and front-end circuits in detail, along with distributed oscillator topologies Devotes a chapter to THz sensing, illustrating a unique method of traveling wave frequency multiplication and power combining Discusses various data converter topologies, such as digital-to-analog converters (DACs), analog-to-digital converters (ADCs), and GHz-bandwidth sigma-delta modulators Covers critical circuits including phase rotators and interpolators, phase shifters, phase-locked loops (PLLs), delay-locked loops (DLLs), and more It is a significantly challenging task to generate and distribute high-speed clocks. Multiphase low-speed clocks with sharp transition are proposed to be a better option to accommodate the desired timing resolution. High Frequency Communication and Sensing: Traveling-Wave Techniques provides new horizons in the quest for greater speed and performance.
Book Synopsis Radio Communication at Ultra High Frequency by : John Thomson (Professor of physics)
Download or read book Radio Communication at Ultra High Frequency written by John Thomson (Professor of physics) and published by . This book was released on 1950 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Frequency Communications by : John Arthur Betts
Download or read book High Frequency Communications written by John Arthur Betts and published by . This book was released on 1967 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Report on a Four Course Ultra-high-frequency Radio Range by : J. C. Hromada
Download or read book Preliminary Report on a Four Course Ultra-high-frequency Radio Range written by J. C. Hromada and published by . This book was released on 1940 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern HF Signal Detection and Direction Finding by : Jay R. Sklar
Download or read book Modern HF Signal Detection and Direction Finding written by Jay R. Sklar and published by MIT Press. This book was released on 2018-09-25 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed descriptions of detection, direction-finding, and signal-estimation methods, using consistent formalisms and notation, emphasizing HF antenna array sensing applications. Adaptive antenna array technology encompasses many powerful interference suppression approaches that exploit spatial differences among signals reaching a radio receiver system. Today, worldwide propagation phenomenology occurring in the High Frequency (HF) radio regime has made such interference common. In this book, Jay Sklar, a longtime researcher at MIT Lincoln Laboratory, presents detailed descriptions of detection, direction-finding, and signal-estimation methods applicable at HF, using consistent formalisms and notation. Modern electronic system technology has made many of these techniques affordable and practical; the goal of the book is to offer practicing engineers a comprehensive and self-contained reference that will encourage more widespread application of these approaches. The book is based on the author's thirty years of managing MIT Lincoln Laboratory work on the application of adaptive antenna array technologies to the sensing of HF communication signals. After an overview of HF propagation phenomenology, communication signal formats, and HF receiver architectural approaches, Sklar describes the HF propagation environment in more detail; introduces important modulation approaches and signaling protocols used at HF; discusses HF receiver system architectural features; and addresses signal processor architecture and its implementation. He then presents the technical foundation for the book: the vector model for a signal received at an adaptive array antenna. He follows this with discussions of actual signal processing techniques for detection and direction finding, including specific direction-finding algorithms; geolocation techniques; and signal estimation.
Book Synopsis Military Standard by : United States. Department of Defense
Download or read book Military Standard written by United States. Department of Defense and published by . This book was released on 1972 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Frequency Radio Communications with Emphasis on Polar Problems by : Finn Lied
Download or read book High Frequency Radio Communications with Emphasis on Polar Problems written by Finn Lied and published by . This book was released on 1967 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis HF Radio Communications System Design Assessment Study. Task 3.2C. Technology Approaches for the Real-Life HF Environment by : R. E. Duff
Download or read book HF Radio Communications System Design Assessment Study. Task 3.2C. Technology Approaches for the Real-Life HF Environment written by R. E. Duff and published by . This book was released on 1980 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: High frequency equipment and system design have been largely ignored by the U.S. Army during the past ten years. This was in anticipation of achieving sufficient and effective communication via use of other frequencies and media. It is now apparent that hf is a more viable and useful tool than previously thought and deserves a role in the U.S. Army's communications system. The problem of now reinstituting hf as an integral part of U.S. Army communications is approached in this CORADCOM study. To better understand the real life hf environment the study team set out to make assessments from several different viewpoints: the communications system, physical, propagation media, noise, EMI/EMC, ECM and the U.S. Army fielded units in Germany. From these assessments the team was able to characterize the hf system in terms of required features and capabilities: ECCM, Nuclear Survivability (for equipment and communications link), Automated and Adaptive, Multi-Type Traffic, Multi-Range, Deployable, Securable, Compatible and Automated Frequency Management.
Book Synopsis Aeronautical Radio Communication Systems and Networks by : Dale Stacey
Download or read book Aeronautical Radio Communication Systems and Networks written by Dale Stacey and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Typically, there are over twenty radio systems on board the average commercial jet aircraft dealing with communication, navigation and surveillance functions. Very high frequency (VHF) air-to-ground communication is usually the main method of information and control exchange between pilot and air traffic control. Satellite and high frequency radio links are used to complement this system for long range or oceanic information exchanges. Other communications systems are required between the airline operation centre and the pilot and sometimes between the passengers and the ground. A comprehensive guide to current systems, networks and topologies, this book covers application requirements for communication and related radio-navigation and surveillance functions in aeronautical systems. There is also an insight into future possibilities as technologies progress and airspace operation and control scenarios change. Ideal for civil aviation authorities, airspace management providers and regulatory organizations, Aeronautical Radio Communication Systems and Networks will also appeal to aircraft and radio equipment manufacturers and university students studying aeronautical or electronic engineering. Key features: Provides a broad and concise look at the various communications systems on board a typical aircraft from a theoretical, system level and practical standpoint with worked examples and case studies throughout. Considers all types of aircraft from light aircraft to large commercial jets and specialised supersonic aircraft. Looks at existing airport radio communication infrastructure and proposals for new very high bandwidth radio applications within the airport environment. Provides a complete list of formulae for engineering design analysis and quick checks on system performance or interference analysis.
Book Synopsis High Frequency (HF) and Meteor Burst Communications in a Polar Environment by :
Download or read book High Frequency (HF) and Meteor Burst Communications in a Polar Environment written by and published by . This book was released on 1993 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: HF radio provides a low-cost, long-range communications alternative to satellite communication (SATCOM). In the polar environment, however, the frequent occurrence of dense sporadic E layers during summer in high-sunspot periods can prevent propagation in the HF band for the desired communications ranges. During solar storms, intense radiation may induce significant D-region absorption which further reduces the utility of HF radio. These phenomena cannot be defeated by the use of automatic link establishment (ALE) HF radio equipment because of the broadband nature of these effects. The use of VHF communication techniques, such as meteor scatter, provide a viable supplement to maintain connectivity when normal ALE HF radio is ineffective. This study combines the analysis of Scott Base Ionosonde data with computer predictions using A Stand- Alone Prediction Program (ASAPS) from the Australian Radio Prediction Service and IONCAP from the Institute for Telecommunications of the U.S. Department of Commerce to quantify the possibility of HF communications and suggest suitable radio system design parameters. Similarly, predictions of meteor burst (MF) link performance are provided for comparison with available measurements so that comparisons may be performed with actual link operations. Finally, an HF/VHF radio system design is envisioned to meet polar communications requirements and follow-on work to develop and verify design details is recommended. Buoys, Radio Communications, Antarctic, High Frequency (HF), Radio Propagation, Antenna, Meteor Burst, Technology Block, Arctic, Radio Communications.
Book Synopsis HF Communications Systems and Technology by : John M. Goodman
Download or read book HF Communications Systems and Technology written by John M. Goodman and published by Springer. This book was released on 1992-05-28 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communications engineers, ionospheric scientists, engineers and scientists in DoD HF projects, and DoD managers will use this source to gain a working understanding of the basic theory involved in HF radiowave propagation and uses of HF technology today.
Book Synopsis Space Physics and Aeronomy, Ionosphere Dynamics and Applications by : Chao Huang
Download or read book Space Physics and Aeronomy, Ionosphere Dynamics and Applications written by Chao Huang and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of global ionospheric research from the polar caps to equatorial regions It's more than a century since scientists first identified the ionosphere, the layer of the Earth’s upper atmosphere that is ionized by solar and cosmic radiation. Our understanding of this dynamic part of the near-Earth space environment has greatly advanced in recent years thanks to new observational technologies, improved numerical models, and powerful computing capabilities. Ionosphere Dynamics and Applications provides a comprehensive overview of historic developments, recent advances, and future directions in ionospheric research. Volume highlights include: Behavior of the ionosphere in different regions from the poles to the equator Distinct characteristics of the high-, mid-, and low-latitude ionosphere Observational results from ground- and space-based instruments Ionospheric impacts on radio signals and satellite operations How earthquakes and tsunamis on Earth cause disturbances in the ionosphere The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about the Space Physics and Aeronomy collection in this Q&A with the Editors in Chief
Book Synopsis High Frequency Radio Communications with Emphasis on Polar Problems by :
Download or read book High Frequency Radio Communications with Emphasis on Polar Problems written by and published by . This book was released on 1967 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Personal Radio Communications by : Richard Buttars
Download or read book Personal Radio Communications written by Richard Buttars and published by Richard Buttars. This book was released on 2014-04-12 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a description of and an introduction to the different types of radio communication available for personal use. Information is provided for each of the different radio services available for personal use along with the frequencies and transmitter power levels available for each.
