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Hf Radio Communication Systems Design Assessment Task 33f Real Time Adaptive Control And Processing
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Book Synopsis HF Radio Communication Systems Design Assessment. Task 3.3f. Real-Time Adaptive Control and Processing by : D. W. Graham
Download or read book HF Radio Communication Systems Design Assessment. Task 3.3f. Real-Time Adaptive Control and Processing written by D. W. Graham and published by . This book was released on 1980 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emphasis in this Real-Time Adaptive Control and Processing task has been on automated frequency management, link connectivity control, channel evaluation, and data transmission adaptation for maximum throughput. The possibilities for a federated processing system were considered as adjunct to maximizing information throughput via the HF communications system. Control aspects for digitally interfaced transmission systems which might connect to the HF channel for further data transmission were not analyzed. The processing and control requirements for automated frequency management have been incorporated in the real-time adaptive control and processing technology analysis. The frequency management capabilities hypothesized have been modeled after the Army's evolving management concepts. A closed-loop concept of frequency management was assumed to be implemented by collecting data at the net station level and transmitting this information, when polled, to the NCS. The NCS would process this information and transmit statistical parameters to the Corps level. This data could be processed further and passed to the Theater Frequency Manager to substantiate Corps requests for different or additional frequencies. Meaningful numbers in terms of measured bit error rates, noise levels, multipath delay spread, and Doppler frequency spread can be used to improve subsequent predictions and frequency assignments.
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 HF Radio Communication Systems Design Assessment. Task 3.3a. Narrow Band Voice Modulation, Optimization of the Frequency by : Steve Dougherty
Download or read book HF Radio Communication Systems Design Assessment. Task 3.3a. Narrow Band Voice Modulation, Optimization of the Frequency written by Steve Dougherty and published by . This book was released on 1980 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although under perfect non-fading propagation conditions narrow-band FM may be the best modulation technique, HG is not an ideal medium and single sideband, which is only a few dB worse under ideal conditions, continued to be the modulation technique that offers the best performance in the least bandwidth. In addition, for reasons of interoperability with existing and other nation's equipment, radios procured through the early 1990's would have to have single sideband. Moderate amounts of amplitude clipping can offer significant improvements in perceived voice quality. Even stronger clipping or logarithmic amplitude compression combined with an amplitude indicating pilot tone can offer greatly enhanced voice performance under good conditions at the cost of poorer performance under marginal conditions. The continued use a analog voice at HF is suspect because of the requirement for security. Therefore, major investments of research and development funds and time in analog processing of voice for HF transmission can not be encouraged. A single-tone modem with waveforms designed in concert with the radio filters and using an adaptive filter to compensate for the HF path offers the highest efficiency potential for digital voice.
Book Synopsis The Concept Industry 4.0 by : Christoph Jan Bartodziej
Download or read book The Concept Industry 4.0 written by Christoph Jan Bartodziej and published by Springer. This book was released on 2016-11-16 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Christoph Jan Bartodziej examines by means of an empirical study which potential Industry 4.0 technologies do have regarding end-to-end digital integration in production logistics based on their functions. According to the relevance of the concept Industry 4.0 and its early stage of implementation it is essential to clarify terminology, explain relations and identify drivers and challenges for an appropriate use of Industry 4.0 technologies. The results will constitute a profound basis to formulate recommendations for action for technology suppliers and technology users.
Book Synopsis HF Radio Communication Systems Design Assessment. Task 3.3g. Automated Frequency Management by : S. J. Smith
Download or read book HF Radio Communication Systems Design Assessment. Task 3.3g. Automated Frequency Management written by S. J. Smith and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: The frequency management approach recommended includes the following: (1) The selection and dissemination of primary and backup orderwire frequencies from the Corps level to all net control stations (NCS); (2) The selection, assignment, and dissemination of operational frequencies to each net; (3) The accommodation of frequency change requests from the NCS at the Corps level; (4) The transfer of control from the Corps to the Division (or separate Brigade) in contingencies; and (5) The maximization of data rate and refined (microscopic) channel selection capabilities at the individual link level. A physical link representation of the recommended frequency management system is given. Since all link configurations within the Corps region have distances less than 286 km, macroscopic frequency management of intended skywave propagation circuits is a simple processs using vertical incidence sounding (VIS).
Book Synopsis HF Radio Communication Systems Design Assessment by :
Download or read book HF Radio Communication Systems Design Assessment written by and published by . This book was released on 1980 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ionospheric sounding may be divided into the two following general classes of operation: (a) true-path ionospheric sounding and (b) ionsopheric parameter probing. Ionospheric sounding is used for both HF communications and for basic research purposes. True-path ionospehric soundign is used solely for Hf communications, which contrasts with ionospheric parameter probing (or radar techniques) which providesa basis for ionospheric prediction besides supplementing basic research. HF communication sounding is, generally, a pre- link-establishment process for macroscopic frequency selection. True-path ionospheric soundign should be distinguished from communication channle evaluation (in-band evaluation) since in-band evaluation is a post-link- establishment process for determining the quality of a given circuit. Sounding equipment is usually separate from the communications equipment as is spectrum monitoring; however, j in-band channle evaluation hardware/software may be merged within the demodulation process as discussed. In the beginning, vertical incidence soundings were used to acquire data on which were based a frequency prediction sysem published in 1954 and which forms the basis of the current prediction system. Oblique soundigns were first used to test and improve the predictions and understanding of ionospheric propagation. Later, oblique sounding was proposed as a real-time aid to communications.
Book Synopsis Tuning, Timbre, Spectrum, Scale by : William A. Sethares
Download or read book Tuning, Timbre, Spectrum, Scale written by William A. Sethares and published by Springer Science & Business Media. This book was released on 2013-06-05 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tuning, Timbre, Spectrum, Scale focuses on perceptions of consonance and dissonance, and how these are dependent on timbre. This also relates to musical scale: certain timbres sound more consonant in some scales than others. Sensory consonance and the ability to measure it have important implications for the design of audio devices and for musical theory and analysis. Applications include methods of adapting sounds for arbitrary scales, ways to specify scales for nonharmonic sounds, and techniques of sound manipulation based on maximizing (or minimizing) consonance. Special consideration is given here to a new method of adaptive tuning that can automatically adjust the tuning of a piece based its timbral character so as to minimize dissonance. Audio examples illustrating the ideas presented are provided on an accompanying CD. This unique analysis of sound and scale will be of interest to physicists and engineers working in acoustics, as well as to musicians and psychologists.
Book Synopsis Evaluating Interreligious Peacebuilding and Dialogue by : Mohammed Abu-Nimer
Download or read book Evaluating Interreligious Peacebuilding and Dialogue written by Mohammed Abu-Nimer and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-09-20 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the emerging fields of religious and interreligious peacebuilding, the question of monitoring and evaluation is a challenging, yet necessary process. The need to develop comprehensive yet fitting evaluation models for religious and interreligious peacebuilding is not only important for donor interests, but also critical as a means of documenting and learning for peacebuilders themselves. Theories and best practices in monitoring and evaluation have become prevalent in many fields, yet the amount of literature on evaluating intercultural and, especially, religious and interreligious projects remains scant in comparison. This volume offers a unique contribution that not only looks at several of the challenges and implications faced by religious and interreligious peacebuilders but also provides concrete examples of new models and tools for monitoring and evaluating religious and interreligious peacebuilding projects. In doing so, this volume serves as a tool and point of reference for individuals and organizations developing and implementing interreligious dialogue and peacebuilding projects.
Book Synopsis The Senses Considered as Perceptual Systems by : James Jerome Gibson
Download or read book The Senses Considered as Perceptual Systems written by James Jerome Gibson and published by . This book was released on 1983 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planthoppers written by Kong Luen Heong and published by Int. Rice Res. Inst.. This book was released on 2009 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neurodiversity in the Classroom by : Thomas Armstrong
Download or read book Neurodiversity in the Classroom written by Thomas Armstrong and published by ASCD. This book was released on 2012 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book by best-selling author Thomas Armstrong offers classroom strategies for ensuring the academic success of students in five special-needs categories: learning disabilities, attention deficit hyperactivity disorder, autism, intellectual disabilities, and emotional and behavioral disorders.
Book Synopsis Indigenous Peoples and Climate Change in Latin America and the Caribbean by : Jakob Kronik
Download or read book Indigenous Peoples and Climate Change in Latin America and the Caribbean written by Jakob Kronik and published by World Bank Publications. This book was released on 2010-06-25 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the social implications of climate change and climatic variability on indigenous peoples and communities living in the highlands, lowlands, and coastal areas of Latin America and the Caribbean. Across the region, indigenous people already perceive and experience negative effects of climate change and variability. Many indigenous communities find it difficult to adapt in a culturally sustainable manner. In fact, indigenous peoples often blame themselves for the changes they observe in nature, despite their limited emission of green house gasses. Not only is the viability of their livelihoods threatened, resulting in food insecurity and poor health, but also their cultural integrity is being challenged, eroding the confidence in solutions provided by traditional institutions and authorities. The book is based on field research among indigenous communities in three major eco-geographical regions: the Amazon; the Andes and Sub-Andes; and the Caribbean and Mesoamerica. It finds major inter-regional differences in the impacts observed between areas prone to rapid- and slow-onset natural hazards. In Mesoamerican and the Caribbean, increasingly severe storms and hurricanes damage infrastructure and property, and even cause loss of land, reducing access to livelihood resources. In the Columbian Amazon, changes in precipitation and seasonality have direct immediate effects on livelihoods and health, as crops often fail and the reproduction of fish stock is threatened by changes in the river ebb and flow. In the Andean region, water scarcity for crops and livestock, erosion of ecosystems and changes in biodiversity threatens food security, both within indigenous villages and among populations who depend on indigenous agriculture, causing widespread migration to already crowded urban areas. The study aims to increase understanding on the complexity of how indigenous communities are impacted by climate change and the options for improving their resilience and adaptability to these phenomena. The goal is to improve indigenous peoples rights and opportunities in climate change adaptation, and guide efforts to design effective and sustainable adaptation initiatives.
Book Synopsis The Fuzzification of Systems by : Rudolf Seising
Download or read book The Fuzzification of Systems written by Rudolf Seising and published by Springer. This book was released on 2007-08-16 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, Fuzzy Set Theory is the core discipline of so-called ‘soft’ computing, and provides new impetus for research in the field of artificial intelligence. In this fascinating book, the history of Fuzzy Set Theory and the ways it was first used are incorporated into the history of 20th century science and technology. Influences from philosophy, system theory and cybernetics stemming from the earliest part of the 20th century are considered alongside those of communication and control theory from mid-century.
Book Synopsis Piezoelectric MEMS Resonators by : Harmeet Bhugra
Download or read book Piezoelectric MEMS Resonators written by Harmeet Bhugra and published by Springer. This book was released on 2017-01-09 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces piezoelectric microelectromechanical (pMEMS) resonators to a broad audience by reviewing design techniques including use of finite element modeling, testing and qualification of resonators, and fabrication and large scale manufacturing techniques to help inspire future research and entrepreneurial activities in pMEMS. The authors discuss the most exciting developments in the area of materials and devices for the making of piezoelectric MEMS resonators, and offer direct examples of the technical challenges that need to be overcome in order to commercialize these types of devices. Some of the topics covered include: Widely-used piezoelectric materials, as well as materials in which there is emerging interest Principle of operation and design approaches for the making of flexural, contour-mode, thickness-mode, and shear-mode piezoelectric resonators, and examples of practical implementation of these devices Large scale manufacturing approaches, with a focus on the practical aspects associated with testing and qualification Examples of commercialization paths for piezoelectric MEMS resonators in the timing and the filter markets ...and more! The authors present industry and academic perspectives, making this book ideal for engineers, graduate students, and researchers.
Book Synopsis Psychotherapy after Brain Injury by : Pamela S. Klonoff
Download or read book Psychotherapy after Brain Injury written by Pamela S. Klonoff and published by Guilford Press. This book was released on 2010-06-09 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents hands-on tools for addressing the multiple ways that brain injury can affect psychological functioning and well-being. The author is a leader in the field who translates her extensive clinical experience into clear-cut yet flexible guidelines that therapists can adapt for different challenges and settings. With a focus on facilitating awareness, coping, competence, adjustment, and community reintegration, the book features helpful case examples and reproducible handouts and forms. It shows how to weave together individual psychotherapy, cognitive retraining, group and family work, psychoeducation, and life skills training, and how to build and maintain a collaborative therapeutic relationship.
Book Synopsis The U.S. Army Operating Concept by : U.s. Army Training and Doctrine Command
Download or read book The U.S. Army Operating Concept written by U.s. Army Training and Doctrine Command and published by CreateSpace. This book was released on 2014-10-09 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how future Army forces, as part of joint, interorganizational, and multinational efforts, operate to accomplish campaign objectives and protect U.S. national interests. It describes the Army's contribution to globally integrated operations, and addresses the need for Army forces to provide foundational capabilities for the Joint Force and to project power onto land and from land across the air, maritime, space, and cyberspace domains. The Army Operating Concept guides future force development through the identification of first order capabilities that the Army must possess to accomplish missions in support of policy goals and objectives.
Book Synopsis The Peptidergic Neuron by : B. Krisch
Download or read book The Peptidergic Neuron written by B. Krisch and published by Springer Science & Business Media. This book was released on 1996-07-30 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: These conference papers review the current state of research in the field of neuropeptides and peptergic neurons. Special topics concern molecular aspects of processing, release and degradation of neuropeptides, receptors and signal transduction, and comparative and behavioural aspects.
