Download or read book Radio Telescope Reflectors written by Jacob W.M. Baars and published by Springer. This book was released on 2017-11-18 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book demonstrates how progress in radio astronomy is intimately linked to the development of reflector antennas of increasing size and precision. The authors describe the design and construction of major radio telescopes as those in Dwingeloo, Jodrell Bank, Parkes, Effelsberg and Green Bank since 1950 up to the present as well as millimeter wavelength telescopes as the 30m MRT of IRAM in Spain, the 50m LMT in Mexico and the ALMA submillimeter instrument. The advances in methods of structural design and coping with environmental influences (wind, temperature, gravity) as well as application of new materials are explained in a non-mathematical, descriptive and graphical way along with the story of the telescopes. Emphasis is placed on the interplay between astronomical and electromagnetic requirements and structural, mechanical and control solutions. A chapter on management aspects of large telescope projects closes the book. The authors address a readership with interest in the progress of engineering solutions applied to the development of radio telescope reflectors and ground station antennas for satellite communication and space research. The book will also be of interest to historians of science and engineering with an inclination to astronomy.

Download or read book Reflector Antennas for Radio and Radar Astronomy written by Albert R. Giddis and published by . This book was released on 1961 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural Design Study for a Radio Telescope with a Paraboloid Reflector Six Hundred Feet in Diameter written by Jacob Feld and published by . This book was released on 2013-02 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annals Of The New York Academy Of Sciences, V70. Additional Editor Is Peter A. Sturgeon.

Download or read book The Paraboloidal Reflector Antenna in Radio Astronomy and Communication written by Jacob W. M. Baars and published by Springer Science & Business Media. This book was released on 2007-08-06 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio astronomers have developed techniques of calibration of large reflector antennas with radio astronomical methods, but these have not been comprehensively described. This text aims to fill this gap, taking a practical approach to the characterisation of antennas. All calculations and results in the form of tables and figures have been made with Mathematica by Wolfram Research. The reader can use the procedures for the implementation of his own input data.

Download or read book Essential Radio Astronomy written by James J. Condon and published by Princeton University Press. This book was released on 2016-04-05 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ideal text for a one-semester course in radio astronomy Essential Radio Astronomy is the only textbook on the subject specifically designed for a one-semester introductory course for advanced undergraduates or graduate students in astronomy and astrophysics. It starts from first principles in order to fill gaps in students' backgrounds, make teaching easier for professors who are not expert radio astronomers, and provide a useful reference to the essential equations used by practitioners. This unique textbook reflects the fact that students of multiwavelength astronomy typically can afford to spend only one semester studying the observational techniques particular to each wavelength band. Essential Radio Astronomy presents only the most crucial concepts—succinctly and accessibly. It covers the general principles behind radio telescopes, receivers, and digital backends without getting bogged down in engineering details. Emphasizing the physical processes in radio sources, the book's approach is shaped by the view that radio astrophysics owes more to thermodynamics than electromagnetism. Proven in the classroom and generously illustrated throughout, Essential Radio Astronomy is an invaluable resource for students and researchers alike. The only textbook specifically designed for a one-semester course in radio astronomy Starts from first principles Makes teaching easier for astronomy professors who are not expert radio astronomers Emphasizes the physical processes in radio sources Covers the principles behind radio telescopes and receivers Provides the essential equations and fundamental constants used by practitioners Supplementary website includes lecture notes, problem sets, exams, and links to interactive demonstrations An online illustration package is available to professors

Download or read book The Incredible Story of Telescopes written by Greg Roza and published by The Rosen Publishing Group, Inc. This book was released on 2003-12-15 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world of optical, radio, and space telescopes will be on view for students in this fascinating story. From the first telescopes of Galileo and Newton to today’s giant twin Keck telescopes in Hawaii, readers will learn about the workings of lenses and mirrors. The book also looks at how a primary mirror is made, why the dish of a radio telescope needs to be wide, and how the Hubble Space Telescope gives astronomers sharper images than do telescopes on Earth.

Download or read book A 22 meter Parabolic Reflector Radio Telescope for the Institute of Physics Academy of Sciences Ussr written by P. D. Kalachev and published by . This book was released on 1961 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design data is given for a movable radio telescope with a 22-m parabolic reflector, which, on an 8 mm wave and a 3 db level, has a needle-shaped directional pattern of no more than 2 minutes of arc. A method is described for obtaining an accurate and sufficiently rigid reflecting surface assuring high resolution. A system of electric drives for the radio telescope allows a fast change in the orientation of the dish (with a speed up to 20 deg. per min) as well as comparatively slow motions, which are required when tracking astronomical sources of radio emission. (Author).

Download or read book Fundamentals of Radio Astronomy written by Jonathan M. Marr and published by CRC Press. This book was released on 2015-11-30 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: As evidenced by five Nobel Prizes in physics, radio astronomy in its 80-year history has contributed greatly to our understanding of the universe. Yet for too long, there has been no suitable textbook on radio astronomy for undergraduate students.Fundamentals of Radio Astronomy: Observational Methods is the first undergraduate-level textbook exclus

Download or read book Radiotelescopes written by W. N. Christiansen and published by CUP Archive. This book was released on 1987-12-17 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analyzing the Physics of Radio Telescopes and Radio Astronomy written by Yeap, Kim Ho and published by IGI Global. This book was released on 2020-02-07 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the field of astrophysics, modern developments of practice are emerging in order to further understand the spectral information derived from cosmic sources. Radio telescopes are a current mode of practice used to observe these occurrences. Despite the various accommodations that this technology offers, physicists around the globe need a better understanding of the underlying physics and operational components of radio telescopes as well as an explanation of the cosmic objects that are being detected. Analyzing the Physics of Radio Telescopes and Radio Astronomy is an essential reference source that discusses the principles of the astronomical instruments involved in the construction of radio telescopes and the analysis of cosmic sources and celestial objects detected by this machinery. Featuring research on topics such as electromagnetic theory, antenna design, and geometrical optics, this book is ideally designed for astrophysicists, engineers, researchers, astronomers, students, and educators seeking coverage on the operational methods of radio telescopes and understanding the physical processes of radio astronomy.

Download or read book A Radio Telescope with Automatic Control of the Reflector Surface written by A. G. SOKOLOV and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOUNTED PHOTOCELLS WHICH SWITCH ON SHIFTING MECHANISM WHEN THE SURFACE IS DISTORTED. (Author).

Download or read book Radio Submillimeter and X Ray Telescopes written by N. G. Basov and published by Springer. This book was released on 2013-12-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the results of research and development connected with the creation oftelescopes intended for the new regions of the spectrum mastered by astronomy: the x-ray, submillimeter (far infrared), and radio regions. The creation of x-ray, submillimeter, and radio telescopes and the receiver apparatus connected with them is a complicated and, in many respects, unusual problem. Therefore, the experience accumulated at the Institute of Physics can prove useful to specialists working in this field, This volume is intended for scientists, engineers, and builders occupied in research and development in the fields of x-ray, submillimeter, and radio astronomy as well as for students of advanced courses in these specialties, V CONTENTS A Reflecting X-Ray Telescope for an Orbital Astrophysical Station. • • • • • • • • • 1 I. L, Beigman. L. A. Vainshtein, Yu. P. Voinov, D. A. Goganov, N. I. Komyak, S. L. Mandel'shtam, I. P, Tindo, N, A, Shatskii, and A. I. Shurygin Mirror Systems for X-Ray Telescopes. • • • • • • • • • • • • • • • • • • • • • • • • • • • • 13 I. L. Beigman, L, A. Vainshtein, Yu. P. Voinov, and V. P, Shevel'ko Extra-Atmospheric studies in the Submillimeter Range Using On-Board Telescopes . . • . . • • • • • . . . • . . . • . • . . . • . . • . • • . . . • • . . . • . . • • . 35 A. E. Salomonovich and A. s.

Download or read book An Introduction to Radio Astronomy written by Bernard F. Burke and published by Cambridge University Press. This book was released on 2002-04-04 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio astronomy uses unique observational techniques and offers the only way to investigate many phenomena in the Universe. This book, by two founders of the field, presents both a clear introduction to radio telescopes and techniques, and a broad overview of the radio universe. The material in this new edition has been expanded and updated, reflecting the developments in the field over the last decade. New material reflects the increasing use of aperture synthesis and Very Long Baseline Interferometry, and the further exploitation of molecular spectral lines. A new chapter is devoted to the fundamentals of radiation and propagation theory. The second half of the book constitutes a review of radio observations of our Milky Way galaxy. Wide-ranging and clearly written, this book provides a thorough and up-to-date introduction to the subject for graduate students, and an invaluable overview for researchers turning to radio astronomy for the first time.

Download or read book Phased Arrays for Radio Astronomy Remote Sensing and Satellite Communications written by Karl F. Warnick and published by Cambridge University Press. This book was released on 2018-07-26 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a modern approach to the analysis, modeling and design of high sensitivity phased arrays. Network theory, numerical methods and computational electromagnetic simulation techniques are uniquely combined to enable full system analysis and design optimization. Beamforming and array signal processing theory are integrated into the treatment from the start. Digital signal processing methods such as polyphase filtering and RFI mitigation are described, along with technologies for real-time hardware implementation. Key concepts from interferometric imaging used in radio telescopes are also considered. A basic development of theory and modeling techniques is accompanied by problem sets that guide readers in developing modeling codes that retain the simplicity of the classical array factor method while incorporating mutual coupling effects and interactions between elements. Combining current research trends with pedagogical material suitable for a first-year graduate course, this is an invaluable resource for students, teachers, researchers, and practicing RF/microwave and antenna design engineers.

Download or read book Tools of Radio Astronomy written by Thomas Wilson and published by Springer Science & Business Media. This book was released on 2008-12-19 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four signi?cant factors have led us to update this text. The ?rst is the breathtaking progress in technology, especially in receiver and digital techniques. The second is the advance of radio astronomy to shorter wavelengths, and the increased availab- ity of astronomical satellites. The third is a need to reorganize some of the chapters in order to separate the basic theory, that seldom changes, from practical aspects that change often. Finally, it is our desire to enhance the text by including problem sets for each chapter. In view of this ambitious plan, we have expanded the number of authors. In the reorganization of this edition, we have divided Chap. 4 of the 4th edition into two Chaps. 4 and 5. The ?rst remains Chap. 4, with a slightly different - tle, Signal Processing and Receivers: Theory. This was expanded to include digital processing and components including samplers and digitizers. In Chap. 5, Prac- cal Receiver Systems. we have relegated the presentations of maser and parametric ampli?er front ends, which are no longer commonly used as microwave receivers in radio astronomy, to a short section on “historical developments” and We have retained and improved the presentations of current state-of-the-art devices, cooled transistor and superconducting front ends. We have also included descriptions of local oscillators and phase lock loops. Chapters 5 and 6 in the 4th edition has now become Chap. 6, Fundamentals of Antenna Theory and Chap.

Download or read book A Theoretical Study of Gregorian Radio Telescopes with Applications to the Arecibo Ionospheric Observatory written by Joseph Henry Pierluissi and published by . This book was released on 1964 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Design and Thermal Behaviour of Radio Telescopes and their Enclosures written by Albert Greve and published by Springer Science & Business Media. This book was released on 2010-03-17 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio telescopes as well as communication antennas operate under the influence of gravity, temperature and wind. Among those, temperature influences may degrade the performance of a radio telescope through transient changes of the focus, pointing, path length and sensitivity, often in an unpredictable way. Thermal Design and Thermal Behaviour of Radio Telescopes and their Enclosures reviews the design and construction principles of radio telescopes in view of thermal aspects and heat transfer with the variable thermal environment; it explains supporting thermal model calculations and the application and efficiency of thermal protection and temperature control; it presents many measurements illustrating the thermal behaviour of telescopes in the environment of their observatory sites. The book benefits scientists and radio/communication engineers, telescope designers and construction firms as well as telescope operators, observatory staff, but also the observing astronomer who is directly confronted with the thermal behaviour of a telescope.