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Rf Systems In Space Volume I Space Antennas Frequency Sarf Simulation
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Book Synopsis RF Systems in Space. Volume I. Space Antennas Frequency (SARF) Simulation by : A. C. Ludwig
Download or read book RF Systems in Space. Volume I. Space Antennas Frequency (SARF) Simulation written by A. C. Ludwig and published by . This book was released on 1983 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this effort was to develop a computer based analytical capability for simulating the RF performance of large space-based radar (SBR) systems. The model is capable of simulating corporate and space fed aperture. The model also can simulate multibeam feeds, cluster/point feeds, corporate feed and various aperture distributions. The simulation is capable of accepting Draper Labs structural data and antenna current data from Atlantic Research Corporation's (ARC) First Approximation Methods (FAM) and Higher Approximation Methods (HAM) models. In addition there is a routine to input various apertures surface distortions which causes the elements in the array to be displaced from the ideal location on a planar lattice. These were analyses looking at calibration/compensation techniques for large aperture space radars. Passive, space fed lens SBR designs were investigated. The survivability of an SBR system was analyzed. The design of ground based SBR validation experiments for large aperture SBR concepts were investigated. SBR designs were investigated for ground target detection.
Book Synopsis Technology for Large Space Systems by :
Download or read book Technology for Large Space Systems written by and published by . This book was released on 1983 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1983 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1984 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1984 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1984 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technology for Large Space Systems: A Bibliography with Indexes (supplement 11) by :
Download or read book Technology for Large Space Systems: A Bibliography with Indexes (supplement 11) written by and published by . This book was released on 1985 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781793953018 Total Pages :26 pages Book Rating :4.9/5 (53 download)
Book Synopsis Model of the Radio Frequency (Rf) Excitation Response from Monopole and Dipole Antennas in a Large Scale Tank by : National Aeronautics and Space Adm Nasa
Download or read book Model of the Radio Frequency (Rf) Excitation Response from Monopole and Dipole Antennas in a Large Scale Tank written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-13 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good antenna-mode coupling is needed for determining the amount of propellant in a tank through the method of radio frequency mass gauging (RFMG). The antenna configuration and position in a tank are important factors in coupling the antenna to the natural electromagnetic modes. In this study, different monopole and dipole antenna mounting configurations and positions were modeled and responses simulated in a full-scale tank model with the transient solver of CST Microwave Studio (CST Computer Simulation Technology of America, Inc.). The study was undertaken to qualitatively understand the effect of antenna design and placement within a tank on the resulting radio frequency (RF) tank spectrum. Wilson, Jeffrey D. and Zimmerli, Gregory A. Glenn Research Center WBS 095240.04.03.04.01.03
Book Synopsis Simulation of Plasma-facing Antennas for RF Ion-cyclotron Heating by : Lorenzo Mazzilli
Download or read book Simulation of Plasma-facing Antennas for RF Ion-cyclotron Heating written by Lorenzo Mazzilli and published by . This book was released on 2001 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radio Frequency Simulation System (RFSS) Capabilities Summary by :
Download or read book Radio Frequency Simulation System (RFSS) Capabilities Summary written by and published by . This book was released on 1977 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Simulation Center's Radio Frequency Simulation System is employed in hardware-in-the-loop simulation and evaluation of sensors, guidance and control subsystems of radar-guided missiles in the 4 to 18 GHz frequency spectrum. The Radio Frequency Simulation System facility is an operating element of the Advanced Simulation Center, Aeroballistics Directorate, US Army Missile Research and Development Command, Redstone Arsenal, Alabama. The facility provides a computer-controlled multiple target array of 534 antennas and an electronic countermeasures of 16 antennas(with an associated feed system and radio frequency generation system). Two three-axis flight tables and an aerodynamic loader are provided to simulate the dynamic environment of a missile in flight. The simulation electromagnetic environment includes line-of-sight angles (target position) polarized target signatures, electronic countermeasures, clutter, multipath, glint, and scintillation phenomena. Simulation and testing determine seeker characteristics such as tracking accuracy and engagement parameters such as miss-distance statistics.
Book Synopsis Analysis and Simulation of the Antenna Control System for the Space Radio Systems Facility by : E. E. Reber
Download or read book Analysis and Simulation of the Antenna Control System for the Space Radio Systems Facility written by E. E. Reber and published by . This book was released on 1963 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: A design, analysis, and simulation of a hydraulic antenna-positioning control system for the millimeter wave antenna of Space Radio Systems Facility is presented. The design and analysis are based upon linearized models of the components to be used for the proposed system. An analog simulation, performed to verify the design and analysis, to investigate relative signal levels, and to determine the effects of wind disturbances and non-linearities, is described. It is shown that a system of this type can be designed to give satisfactory performance in the presence of expected nonlinearities and wind disturbances. (Author).
Author :United States. National Aeronautics and Space Administration. Scientific and Technical Information Program Publisher : ISBN 13 : Total Pages :652 pages Book Rating :4.F/5 ( download)
Book Synopsis NASA Patent Abstracts Bibliography by : United States. National Aeronautics and Space Administration. Scientific and Technical Information Program
Download or read book NASA Patent Abstracts Bibliography written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Program and published by . This book was released on 1993 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U.S. National Report 1987-1990 written by and published by . This book was released on 1991 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Wireless Communications by : Z. Ghassemlooy
Download or read book Optical Wireless Communications written by Z. Ghassemlooy and published by CRC Press. This book was released on 2017-07-12 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailing a systems approach, Optical Wireless Communications: System and Channel Modelling with MATLAB®, is a self-contained volume that concisely and comprehensively covers the theory and technology of optical wireless communications systems (OWC) in a way that is suitable for undergraduate and graduate-level students, as well as researchers and professional engineers. Incorporating MATLAB® throughout, the authors highlight past and current research activities to illustrate optical sources, transmitters, detectors, receivers, and other devices used in optical wireless communications. They also discuss both indoor and outdoor environments, discussing how different factors—including various channel models—affect system performance and mitigation techniques. In addition, this book broadly covers crucial aspects of OWC systems: Fundamental principles of OWC Devices and systems Modulation techniques and schemes (including polarization shift keying) Channel models and system performance analysis Emerging visible light communications Terrestrial free space optics communication Use of infrared in indoor OWC One entire chapter explores the emerging field of visible light communications, and others describe techniques for using theoretical analysis and simulation to mitigate channel impact on system performance. Additional topics include wavelet denoising, artificial neural networks, and spatial diversity. Content also covers different challenges encountered in OWC, as well as outlining possible solutions and current research trends. A major attraction of the book is the presentation of MATLAB simulations and codes, which enable readers to execute extensive simulations and better understand OWC in general.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Cluster Active Archive by : Harri Laakso
Download or read book The Cluster Active Archive written by Harri Laakso and published by Springer Science & Business Media. This book was released on 2009-12-04 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the year 2000 the ESA Cluster mission has been investigating the small-scale structures and processes of the Earth's plasma environment, such as those involved in the interaction between the solar wind and the magnetospheric plasma, in global magnetotail dynamics, in cross-tail currents, and in the formation and dynamics of the neutral line and of plasmoids. This book contains presentations made at the 15th Cluster workshop held in March 2008. It also presents several articles about the Cluster Active Archive and its datasets, a few overview papers on the Cluster mission, and articles reporting on scientific findings on the solar wind, the magnetosheath, the magnetopause and the magnetotail.
