Earth-to-space Communications at Millimeter Wavelengths

Earth-to-space Communications at Millimeter Wavelengths PDF Author: Edward E. Altshuler
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 46

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Book Description
It is expected that with the exploration of outer space, a requirement for high data rate earth-to-space communication channels will arise. A program to investigate the feasibility of using the millimeter-wave region of the spectrum for this application is presented. The theory of atmospheric attenuation resulting from losses due to absorption, scattering and refraction processes is reviewed and used to estimate propagation losses produced by atmospheric gases, clouds and precipitation. Curves of total atmospheric attenuation and noise level as a function of meteorological parameters and antenna elevation angle are also presented. A series of experiments designed to obtain as much information as possible on the limitations imposed by the atmosphere on millimeter-wave propagation is considered. Although experiments using natural celestial bodies such as the sun, moon, planets and galaxies as radio sources are emphasized, those which would utilize aircraft, rockets and satellites are also mentioned. Finally, the characteristics of a recently installed precision 29-ft antenna designed to operate at 35 Gc (wavelength = 8.6 mm) with a traveling-wave maser as a preamplifier for the radiometer are outlined along with the specific experiments for which this antenna system will be used. (Author).

Report on Research at AFCRL.

Report on Research at AFCRL. PDF Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 350

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NASA Technical Note

NASA Technical Note PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 724

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580

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Atmospheric Transmission Handbook

Atmospheric Transmission Handbook PDF Author: William I. Thompson
Publisher:
ISBN:
Category : Atmosphere
Languages : en
Pages : 310

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Infrared and Millimeter Waves V9

Infrared and Millimeter Waves V9 PDF Author: Kenneth J. Button
Publisher: Elsevier
ISBN: 0323153992
Category : Technology & Engineering
Languages : en
Pages : 363

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Book Description
Infrared and Millimeter Waves, Volume 9: Millimeter Components and Techniques, Part I compiles the work of several authors while focusing on certain aspects of infrared and millimeter waves, such as sources of radiation, instrumentation, and millimeter systems. This volume deals with millimeter components and techniques. Chapter 1 covers millimeter wave communications, and then the succeeding chapter discusses a comparative study of millimeter waves and transmission lines. This book then tackles dielectric waveguide electrooptic devices, as well as millimeter-wave propagation and remote sensing of the atmosphere, which are covered in Chapter 4. The fifth chapter presents the technology of large radio telescopes for millimeter and submillimeter. The next chapter explains a gyrotron study program, and the last chapter discusses multimode analysis of quasi-optical gyrotrons and gyroklystrons. This book will be of great use for researchers or professionals whose work involves infrared and millimeter waves.

Journal of Research, National Bureau of Standards

Journal of Research, National Bureau of Standards PDF Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Ionospheric radio wave propagation
Languages : en
Pages : 1400

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Remote Sensing of Earth Resources

Remote Sensing of Earth Resources PDF Author: NASA Scientific and Technical Information Facility
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 622

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Technical Abstract Bulletin

Technical Abstract Bulletin PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 908

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NASA Scientific and Technical Reports

NASA Scientific and Technical Reports PDF Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 966

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