Brief communication "Monitoring ionospheric variations before earthquakes using the vertical and oblique sounding network over China" [PDF]
Natural Hazards and Earth System Sciences, 2011 The problem of earthquake prediction has stimulated the research for correlation between seismic activity and ionospheric anomaly. Many observations have shown the existence of anomaly of critical frequency of ionospheric F-region, foF2, before ...
Z. Wu +7 more
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OFDM signal with BPSK modulated subcarriers for multi-carrier ionospheric sounding [PDF]
ITM Web of Conferences, 2019 Paper presents the developed algorithm for multi-carrier simultaneous vertical ionospheric sounding by OFDM signal with BPSK modulation of subcarriers.
Ivanov Vladimir +3 more
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Design of Multifunctional Mesosphere-Ionosphere Sounding System and Preliminary Results [PDF]
Sensors, 2020 This paper describes a novel sounding system for which the functions of the medium frequency (MF) radar and the ionosonde are integrated on the same hardware platform and antenna structure, namely the middle atmosphere-ionosphere (MAI) system. Unlike the
Tongxin Liu +8 more
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Description of ionospheric disturbances observed by Vertical Ionospheric Sounding at 3 MHz [PDF]
Annals of Geophysics, 2014 High Frequency radio waves reflected by the ionosphere can provide a relevant amount of information within the composite received signal. The ionosphere is indeed a frequency dispersive, bi-refractive, absorbing medium, in which multipath propagation ...
James Arokiasami Baskaradas +5 more
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Estimation of the parameters of traveling ionospheric disturbances using a chirp-ionosondes network
Учёные записки Казанского университета: Серия Физико-математические науки, 2022 In this article, the results of our observations of traveling ionospheric disturbances are discussed using the data from a network of chirp stations for oblique ionospheric sounding in December 2019. All observations were made with the same type of chirp
A.A. Kolchev +4 more
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Doppler shifts of HF radio waves along oblique propagation paths in the ionosphere
Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023 Urgency. The ionosphere is widely used as a channel for radar, radioastronomy, radio navigation, communication links, and space-based sounding the Earth.
L. F. Chernogor, Y. H. Zhdanko
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Retrieval of ionospheric profiles from the Mars Express MARSIS experiment data and comparison with radio occultation data [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2012 Since 2005 the Mars Advanced Radar and Ionospheric Sounding experiment (MARSIS) aboard Mars Express has acquired a unique dataset on the ionosphere of Mars made up of ionospheric soundings taken by the instrument working in its active ionospheric ...
B. Sánchez-Cano +6 more
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Recent ionospheric investigations in China (2018–2019)
Earth and Planetary Physics, 2020 Since the release of the 2018 National Report of China on ionospheric research ( Liu LB and Wan WX, 2018) to the Committee on Space Research (COSPAR), scientists from Mainland China have made many new fruitful investigations of various ionospheric ...
LiBo Liu, WeiXing Wan
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Longitudinal differences observed in the ionospheric F-region during the major geomagnetic storm of 31 March 2001 [PDF]
Annales Geophysicae, 2004 A new ionospheric sounding station using a Canadian Advanced Digital Ionosonde (CADI) was established for routine measurements by the "Universidade do Vale do Paraiba (UNIVAP)" at São José dos Campos (23.2° S, 45.9° W), Brazil, in ...
Y. Sahai +9 more
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Doppler vertical sounding of the ionosphere at the Akademik Vernadsky station
Український антарктичний журнал, 2020 The paper aims at providing the technical information about Doppler vertical sounding of the ionosphere that started at the Ukrainian Antarctic Akademik Vernadsky station since 2017; developing the technique for processing and visualization of data of ...
A. Zalizovski +5 more
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