Results 261 to 270 of about 86,460 (309)
Radio Science, 1992 A simple expression for the expected average signal power of a radio acoustic sounding system (RASS) comprising a monostatic pulsed Doppler radar and a continuous‐wave broadbeam acoustic source is developed. The effects of horizontal winds, atmospheric turbulence, and vertical temperature gradients are included.
Richard J. Lataitis
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Correction of Height Profiles of the Electron Density of the IRI Model by Vertical Sounding Data
2019 Russian Open Conference on Radio Wave Propagation (RWP), 2019Method of stable solution of the problem of vertical sounding ionograms inversion into height dependences of the electron plasma frequency of the ionosphere is presented. For this purpose, the correction of the IRI-2016 model is used in regions invisible
Vladimir V Sotsky
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Application of HF OFDM Signal for Multi-Carrier Vertical Ionospheric Sounding
IEEE Asia-Pacific Conference on Antennas and Propagation, 2019The paper discusses the possibility of application of multi-carrier HF OFDM signal in the problem of vertical ionospheric sounding by low-power signals. There are presented operation algorithm with the use of platform Universal Software Radio Peripheral ...
D. Ivanov +4 more
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Features of Correction of the IRI Model for the Lower Ionosphere from Vertical Sounding Data
2019 Radiation and Scattering of Electromagnetic Waves (RSEMW), 2019A new method for the correction of the height dependences of electron plasma frequency in the IRI-2016 model according to the virtual heights data of signal reflections in the E region of the ionosphere is proposed.
Vladimir V Sotsky
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TECHNIQUE OF FAST DOPPLER FREQUENCY SHIFT ESTIMATION AT VERTICAL RADIO SOUNDING OF THE IONOSPHERE
Radio Propagation: Proceedings of the XXIX All-Russian Open Scientific ConferenceV.Yu. Kim
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Science Bulletin of the Novosibirsk State Technical University, 2014 PJSC «Omskiy Nauchno Issledovatelskiy Institut Priborostroeniya» +1 more
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Journal of Geophysical Research: Space Physics, 2021
The vertical propagation of coseismic ionospheric disturbances (CIDs) associated with the foreshock of the Tohoku earthquake was examined using an HF Doppler sounding system.
H. Nakata +3 more
semanticscholar +1 more source
The vertical propagation of coseismic ionospheric disturbances (CIDs) associated with the foreshock of the Tohoku earthquake was examined using an HF Doppler sounding system.
H. Nakata +3 more
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Economic Technology for Atmosphere Parameters Distant Recording Using Radio Acoustic Sounding System
2020 IEEE Ukrainian Microwave Week (UkrMW), 2020A new technology for RASS – a passive radar sensing of the scattered signals spot focused on the underlying surface by spherical wave fronts of an acoustic package – is considered.
V. Kartashov +4 more
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2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO), 2020
We proposed to use a wideband multicarrier phase coded signal (MCPC) and orthogonal subcarrier multiplexing for vertical sounding. Approach involved phase coding by the Barker pseudorandom sequence and compression of partial signals in the time domain ...
N. Ryabova +3 more
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We proposed to use a wideband multicarrier phase coded signal (MCPC) and orthogonal subcarrier multiplexing for vertical sounding. Approach involved phase coding by the Barker pseudorandom sequence and compression of partial signals in the time domain ...
N. Ryabova +3 more
semanticscholar +1 more source