Download or read book Estimates of Communication Satellite System Degradation Due to Rain written by Nathaniel E. Feldman and published by . This book was released on 1964 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of a communication satellite link is influenced by the fact that rain not only attenuates the signal but also adds thermal noise to the other sources of sky noise. The influence of sky noise on the choice of communication satellite system parameters has been studied for some time. Some publications have emphasized the contributions of cosmic noise, and noise due to oxygen and water vapor absorption in the atmosphere to sky noise, but neglected the noise due to rain. A few publications have looked specifically at the problem of the sky noise contribution due to rain. Combining all these sources of noise as a function of frequency and elevation angle is the first task this paper will cover. The combined system degradation at 4 kMc due to both rain effects, i.e., attenuation and noise, as a function of cumulative time distribution is calculated; it may be a key factor in evaluating the worth of better receivers, e.g., cooled parametric amplifiers, at communication satellite ground terminals in regions of heavy and frequent rainfall. Presenting estimates of these time distributions of degradation of the down link due to rain for various system noise temperatures in the absence of rain is the second task of this paper.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1967 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Weather Service Technical Report written by United States. Air Weather Service and published by . This book was released on 1970 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Survey of Earth to satellite Propagation Factors Between 2 5 and 275 GHz written by David A. Hill and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Communication Satellite Systems Technology written by Richard B. Marsten and published by Academic Press. This book was released on 2014-12-03 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communication Satellite Systems Technology reviews the state of the art in communication satellite systems technology. Topics covered range from commercial point-to-point systems and military satellite communication systems to satellite support subsystems and components, along with high-power systems. Communication satellites are also discussed from a sociological perspective. Comprised of 50 chapters, this book begins with a 1945 article by Arthur C. Clarke in which he proposed the construction of rocket space stations in orbit that would provide complete radio coverage of the globe as well as extraterrestrial relay services. The reader is then introduced to the Early Bird satellite and its hydrogen peroxide orbit control and orientation system. Details of the sequence of maneuvers required after transfer ellipse injection until final placement in a stationary orbit are given. The methods of calculation of maneuver parameters, as well as numerical examples of certain Early Bird orbit changes and maneuver parameters, are described. The effects of the principal long-term disturbing forces on the satellite are also considered. Subsequent chapters focus on military satellite communication systems; satellite support subsystems and components; high-power systems; and systems concepts. The organization and program of Intelsat are also evaluated. This monograph will be of value to practitioners in the fields of aeronautics, astronautics, and satellite communications.
Download or read book OT Report written by United States. Department of Commerce. Office of Telecommunications and published by . This book was released on 1974 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Feasibility of a Direct Relay of Apollo Spacecraft Data Via a Communication Satellite written by P. E. Schmid and published by . This book was released on 1967 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1965 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peaceful Uses of Automation in Outer Space written by John A. Aseltine and published by Springer. This book was released on 2013-11-27 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Communication Satellite Systems Technology written by Richard Barry Marsten and published by . This book was released on 1966 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Security and Privacy Issues in IoT Devices and Sensor Networks written by Sudhir Kumar Sharma and published by Academic Press. This book was released on 2020-10-15 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Security and Privacy Issues in IoT Devices and Sensor Networks investigates security breach issues in IoT and sensor networks, exploring various solutions. The book follows a two-fold approach, first focusing on the fundamentals and theory surrounding sensor networks and IoT security. It then explores practical solutions that can be implemented to develop security for these elements, providing case studies to enhance understanding. Machine learning techniques are covered, as well as other security paradigms, such as cloud security and cryptocurrency technologies. The book highlights how these techniques can be applied to identify attacks and vulnerabilities, preserve privacy, and enhance data security. This in-depth reference is ideal for industry professionals dealing with WSN and IoT systems who want to enhance the security of these systems. Additionally, researchers, material developers and technology specialists dealing with the multifarious aspects of data privacy and security enhancement will benefit from the book's comprehensive information. Provides insights into the latest research trends and theory in the field of sensor networks and IoT security Presents machine learning-based solutions for data security enhancement Discusses the challenges to implement various security techniques Informs on how analytics can be used in security and privacy
Download or read book Precipitation Advances in Measurement Estimation and Prediction written by Silas C. Michaelides and published by Springer Science & Business Media. This book was released on 2008-02-27 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the outcome of contributions from 51 scientists who were invited to expose their latest findings on precipitation research and in particular, on the measurement, estimation and prediction of precipitation. The reader is presented with a blend of theoretical, mathematical and technical treatise of precipitation science but also with authentic applications, ranging from local field experiments and country-scale campaigns to multinational space endeavors.
Download or read book Satellite Communications 1964 written by United States. Congress. House. Committee on Government Operations and published by . This book was released on 1964 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pt. 1 discusses feasibility of joint military-civilian use of COMSAT global satellite system.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Research Memorandum written by and published by . This book was released on 1947 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
