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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The Pioneer Venus Orbiter Plasma Wave Investigation

[{u'author_order': 1, u'affiliation': u'TRW Defense and Space Systems, Redondo, CA 90278', u'full_name': u'F. L. Scarf'}, {u'author_order': 2, u'affiliation': u'TRW Defense and Space Systems, Redondo, CA 90278', u'full_name': u'W. W. L. Taylor'}, {u'author_order': 3, u'affiliation': u'TRW Defense and Space Systems, Redondo, CA 90278', u'full_name': u'P. F. Virobik'}] IEEE Transactions on Geoscience and Remote Sensing, 1980

The Pioneer Venus plasma wave instrument has a selfcontained balanced electric dipole (effective length = 0.75 m) and a 4-channel spectrum analyzer (30-percent bandwidth filters with center frequencies at 100 Hz, 730 Hz, 5.4 kHz, and 30 kHz). The channels are continuously active and the highest Orbiter telemetry rate (2048 bps) yields 4 spectral scans/s. The total mass of 0.55 ...


Background Ionosphere Effects on Geosynchronous SAR Focusing: Theoretical Analysis and Verification Based on the BeiDou Navigation Satellite System (BDS)

[{u'author_order': 1, u'affiliation': u'Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, Beijing Institute of Technology, Beijing, China', u'full_name': u'Cheng Hu'}, {u'author_order': 2, u'affiliation': u'Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, Beijing Institute of Technology, Beijing, China', u'full_name': u'Ye Tian'}, {u'author_order': 3, u'affiliation': u'Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, Beijing Institute of Technology, Beijing, China', u'full_name': u'Xiaopeng Yang'}, {u'author_order': 4, u'affiliation': u'Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, Beijing Institute of Technology, Beijing, China', u'full_name': u'Tao Zeng'}, {u'author_order': 5, u'affiliation': u'Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, Beijing Institute of Technology, Beijing, China', u'full_name': u'Teng Long'}, {u'author_order': 6, u'affiliation': u'Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, Beijing Institute of Technology, Beijing, China', u'full_name': u'Xichao Dong'}] IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016

Due to the ultra-long aperture time and large coverage characteristics of geosynchronous synthetic aperture radar (GEO SAR), the ionosphere freezing model in the traditional low earth orbit synthetic aperture radar (LEO SAR) imaging is assumed to fail in the GEO SAR, thus it should take the effects of the temporal-spatial variation (TSV) background ionosphere on the GEO SAR imaging into ...


Frequency Propagation Forecasting for Military World Air Route Operations

[{u'author_order': 1, u'affiliation': u'USAF, Washington, D.C., USA', u'full_name': u'L. Meaker'}] Transactions of the IRE Professional Group on Communications Systems, 1954

First Page of the Article ![](/xploreAssets/images/absImages/01095347.png)


Global assimilation of ionospheric measurements (GAIM)

[{u'author_order': 1, u'affiliation': u'Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USA.', u'full_name': u'Robert W. Schunk'}, {u'author_order': 2, u'affiliation': u'Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USA.', u'full_name': u'Ludger Scherliess'}, {u'author_order': 3, u'affiliation': u'Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USA.', u'full_name': u'Jan J. Sojka'}, {u'author_order': 4, u'affiliation': u'Center for Atmospheric and Space Sciences, Utah State University, Logan, Utah, USA.', u'full_name': u'Donald C. Thompson'}, {u'author_order': 5, u'affiliation': u'NOAA/Space Environment Center, Department of Commerce, Boulder, Colorado, USA.', u'full_name': u'David N. Anderson'}, {u'author_order': 6, u'affiliation': u'NOAA/Space Environment Center, Department of Commerce, Boulder, Colorado, USA.', u'full_name': u'Mihail Codrescu'}, {u'author_order': 7, u'affiliation': u'NOAA/Space Environment Center, Department of Commerce, Boulder, Colorado, USA.', u'full_name': u'Cliff Minter'}, {u'author_order': 8, u'affiliation': u'NOAA/Space Environment Center, Department of Commerce, Boulder, Colorado, USA.', u'full_name': u'Timothy J. Fuller-Rowell'}, {u'author_order': 9, u'affiliation': u'W. B. Hanson Center for Space Sciences, University of Texas at Dallas, Richardson, Texas, USA.', u'full_name': u'Roderick A. Heelis'}, {u'author_order': 10, u'affiliation': u'W. B. Hanson Center for Space Sciences, University of Texas at Dallas, Richardson, Texas, USA.', u'full_name': u'Marc Hairston'}, {u'author_order': 11, u'affiliation': u'Applied Physics Laboratory, University of Washington, Seattle, Washington, USA.', u'full_name': u'Bruce M. Howe'}] Radio Science, 2004

The ionosphere is a highly dynamic medium that exhibits weather disturbances at all latitudes, longitudes, and altitudes, and these disturbances can have detrimental effects on both military and civilian systems. In an effort to mitigate the adverse effects, we are developing a physics-based data assimilation model of the ionosphere and neutral atmosphere called the Global Assimilation of Ionospheric Measurements (GAIM). ...


Ionosphere TEC prediction based on Chaos

[{u'author_order': 1, u'affiliation': u'Meteorol. Inst., PLA Sci. & Technol. Univ. Nanjing, Nanjing, China', u'full_name': u'Xu Zhenzhong'}, {u'author_order': 2, u'affiliation': u'Meteorol. Inst., PLA Sci. & Technol. Univ. Nanjing, Nanjing, China', u'full_name': u'Wang Weimin'}, {u'author_order': 3, u'affiliation': u'Unit No. 96631, PLA, Beijing, China', u'full_name': u'Wang Bo'}] ISAPE2012, None

This paper proved the chaotic property of ionosphere total electron content (TEC) by using the data in 1997 and 2001 at Wuhan station, based on Chaos theory. The time delay was calculated by using mutual information method, the best embedding dimension was calculated by using G-P method and the largest Lyapunov exponent was calculated by using small data method. Based ...


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Educational Resources on Ionosphere

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IEEE-USA E-Books

  • Utilization of Radio Frequencies

    This chapter contains sections titled: Spectrum Usage Overview Spectrum Management by ITU Radio Communication Services Radio Communication Systems

  • Fundamental Considerations for GNSS Antennas

    This chapter contains sections titled: GNSS Radio Wave Propagation Antenna Design Fundamentals CP Antenna Design References

  • 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.

  • Transmission Impairments

    This chapter contains sections titled: Radiowave Frequency and Space Communications Radiowave Propagation Mechanisms Propagation Below About 3 GHz Propagation Above About 3 GHz Radio Noise References Problems

  • 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.

  • Predicting HF Radio

    **A practical guide to the principles of radio communications for both civilian and military applications** In this book, the author covers both the civilian and military uses of technology, focusing particularly on the applications of radio propagation and prediction. Divided into two parts, the author introduces the basic theory of radio prediction before providing a step-by-step explanation of how this theory can be translated into real-life applications. In addition, the book presents up-to-date systems and methods to illustrate how these applications work in practice. This includes systems working in the HF bands and SHF. Furthermore, the author examines the performance of these systems, and also the effects of noise, interference and deliberate jamming, as well as the performance of jamming, detection and intercept systems. Particular attention is paid to the problems caused by Radio Controlled Improvised Explosive Devices (RCIEDs). **Key Features:** * * Written by an expert in both the civilian and military applications of the technology * Focuses on methods such as radio and radar jamming, and radio-controlled improvised explosive devices (IEDs) * Contains problems and solutions to clarify key topics



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