Ionosphere

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The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. (Wikipedia.org)






Conferences related to Ionosphere

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2018 14th IEEE International Conference on Signal Processing (ICSP)

ICSP2018 includes sessions on all aspects of theory, design and applications of signal processing. Prospective authors are invited to propose papers in any of the following areas, but not limited to: A. Digital Signal Processing (DSP)B. Spectrum Estimation & ModelingC. TF Spectrum Analysis & WaveletD. Higher Order Spectral AnalysisE. Adaptive Filtering &SPF. Array Signal ProcessingG. Hardware Implementation for Signal ProcessingH Speech and Audio CodingI. Speech Synthesis & RecognitionJ. Image Processing & UnderstandingK. PDE for Image ProcessingL.Video compression &StreamingM. Computer Vision & VRN. Multimedia & Human-computer InteractionO. Statistic Learning & Pattern RecognitionP. AI & Neural NetworksQ. Communication Signal processingR. SP for Internet and Wireless CommunicationsS. Biometrics & AuthentificationT. SP for Bio-medical & Cognitive ScienceU


2018 European Conference on Antennas and Propagation (EuCAP)

Antennas & related topics e.g. theoretical methods, systems, wideband, multiband, UWBPropagation & related topics e.g. modelling/simulation, HF, body-area, urbanAntenna & RCS measurement techniques


2018 IEEE Aerospace Conference

The international IEEE Aerospace Conference is organized to promote interdisciplinaryunderstanding of aerospace systems, their underlying science, and technology


2018 IEEE International Conference on Plasma Science (ICOPS)

Plasma Science


2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

The joint meeting is intended to provide an international forum for the exchange of information on state-of-the-art research in antennas, propagation, electromagnetics, and radio science.


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Periodicals related to Ionosphere

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Broadcasting, IEEE Transactions on

Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.


Communications Magazine, IEEE

IEEE Communications Magazine was the number three most-cited journal in telecommunications and the number eighteen cited journal in electrical and electronics engineering in 2004, according to the annual Journal Citation Report (2004 edition) published by the Institute for Scientific Information. Read more at http://www.ieee.org/products/citations.html. This magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications ...


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Most published Xplore authors for Ionosphere

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Xplore Articles related to Ionosphere

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Remote sensing of nighttime F region peak height and peak density using ultraviolet line ratios

[{u'author_order': 1, u'affiliation': u'Space Science Division, Naval Research Laboratory, Washington, D. C., USA.', u'full_name': u'K. F. Dymond'}] Radio Science, 2009

We present a newly developed algorithm for simultaneously inferring the peak height and peak density of the O+ions in the nighttime ionosphere. The technique relies on the simultaneous observation of the emissions of atomic oxygen at 130.4 and 135.6 nm that are primarily produced by radiative recombination, a natural decay process of the ionosphere. The 135.6 nm emission has become ...


The Ionosphere

[{u'author_order': 1, u'affiliation': u'Bell Telephone Laboratories, New York, N. Y.', u'full_name': u'Karl K. Darrow'}] Electrical Engineering, 1940

SOME YEARS AGO there was a flood of books bearing such titles as “The Doctor Looks at Love”, “The Lawyer Looks at the Law”, “The Poet Looks at Civilization”, etc., etc. I might have followed their precedent by naming this lecture “The Physicist Looks at the Ionosphere”. Better would have been to say “The Physicist Listens to the Ionosphere” for ...


Strong scintillation of GNSS signals in the inhomogeneous ionosphere: 2. Simulator of transionospheric channel

[{u'author_order': 1, u'affiliation': u'Department of Radio Physics, University of St. Petersburg, St. Petersburg, Russia', u'full_name': u'Vadim E. Gherm'}, {u'author_order': 2, u'affiliation': u'Department of Radio Physics, University of St. Petersburg, St. Petersburg, Russia', u'full_name': u'Nikolay N. Zernov'}] Radio Science, 2015

The physics-based software simulator of the Global Navigation Satellite System signals on the transionospheric paths of propagation is presented, which provides the possibility for generating the field amplitude and phase random time series in the conditions of strong scintillations, including the case when it is formed inside the inhomogeneous ionospheric layer, which is the result of multiple scattering by the ...


An ionospheric obliquity process responsive to line-of-sight azimuth and elevation

[{u'author_order': 1, u'affiliation': u'The MITRE Corporation, McLean, Virginia, USA', u'full_name': u'Robert S. Conker'}, {u'author_order': 2, u'affiliation': u'The MITRE Corporation, McLean, Virginia, USA', u'full_name': u'M. Bakry El-Arini'}] Radio Science, 2002

This paper describes a one-directional iterative technique which converts from slant Total Electron Content (TEC) to vertical TEC using information describing the current state of the ionosphere. The method combines the well- known Chapman function of electron density with a spherical harmonics representation of the peak density over a spherical surface. Several parameters either have restricted movement or are kept ...


Latitude variation in VLF modal interference

[{u'author_order': 1, u'affiliation': u'Physics Department, Victoria University of Wellington, Wellington, New Zealand; Physics Department, Imperial College, London, S.W.7.', u'full_name': u'A. B. Kaiser'}] Radio Science, 1968

Sunrise modal interference patterns are analyzed to reveal the variation with latitude of VLF propagation parameters. For VLF transmissions from NLK/NPG and WWVL received in New Zealand, the sunrise interference observations confirm Lynn's result that anomalies in the phase and magnitude of mode conversion occur when the sunrise line is near the geomagnetic equator. A smaller anomalous effect is observed ...


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Educational Resources on Ionosphere

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IEEE-USA E-Books

  • Ionospheric Radio Propagation

    The effects of the ionosphere on radio propagation are very important in radio communication between the terrestrial antennas and air vehicles (stationary or moving) or satellites. This chapter begins by briefly presenting information about the ionosphere as a continuous medium consisting of plasma, and describes the common effects of ionospheric plasma on radio propagation, following the description of ionospheric effects as well as on the authors’ computations. Then, it discusses the effects of large‐scale and small‐scale ionospheric plasma inhomogeneities, and illustrates the main results of signal amplitude and phase variations, that is, the fast fading, resulting from the inhomogeneous structure of the ionosphere, on the basis of numerical computations carried out by the authors according to proposed ionospheric models. Finally, the chapter considers the effects of an inhomogeneous ionosphere on radio propagation at long distances.

  • Predicting HF Radio

    None

  • Utilization of Radio Frequencies

    This chapter contains sections titled:Spectrum Usage OverviewSpectrum Management by ITURadio Communication ServicesRadio Communication Systems

  • IONOSPHERIC PROPAGATION

    The amplitude variations of a signal propagating through the ionosphere result from the destructive and constructive interaction of the signal phase resulting from the numerous signal paths through the nonhomogeneous medium; this phenomenon is referred to as scintillation. Signal propagation through the ionosphere is characterized by the refractive index. The refractive index and its influence on the various aspects of a received signal is the subject of this chapter. The chapter characterizes the electron densities in the ionosphere for the natural and nuclear‐disturbed environments and discusses the influence of the electron densities on signal propagation in terms of the refractive index. Application of the index of refraction to a communication link yields the influence of the ionospheric propagation on the received signal. The chapter concludes with a case study of a scintillation scenario using a differentially coherent modulation with interleaving and combining.

  • Transmission Impairments

    The relative importance of radiowave propagation in space communications depends on the frequency of operation, local climatology, local geography, type of transmission, and elevation angle to the satellite. This chapter discusses radiowave propagation in space communications, and introduces the general terms used to describe the propagation phenomena, or propagation mechanisms, which can affect the characteristics of a radiowave. It introduces the major propagation impairments which can affect space communications at frequencies above the ionospheric penetration frequency and up to about 3 GHz. The chapter describes the major propagation impairments, include ionospheric scintillation, polarization rotation, group delay and dispersion, that can hinder space communications in the frequency bands above about 3 GHz. The chapter focuses on line‐of‐site link impairments, additional effects, such as shadowing, blockage and multipath scintillation. The chapter also describes the major radio noise sources in satellite communications, and provides concise methods for the calculation radio noise for the evaluation of communications system performance.

  • Fundamental Considerations for GNSS Antennas

    This chapter contains sections titled:GNSS Radio Wave PropagationAntenna Design FundamentalsCP Antenna DesignReferences

  • Transmission Impairments

    This chapter contains sections titled:Radiowave Frequency and Space CommunicationsRadiowave Propagation MechanismsPropagation Below About 3 GHzPropagation Above About 3 GHzRadio NoiseReferencesProblems



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