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  Subjects -> ELECTRONICS (Total: 160 journals)
Showing 1 - 200 of 277 Journals sorted alphabetically
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 7)
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 5)
Advances in Electronics     Open Access   (Followers: 63)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 9)
Advances in Microelectronic Engineering     Open Access   (Followers: 12)
Advances in Power Electronics     Open Access   (Followers: 29)
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 269)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 24)
Annals of Telecommunications     Hybrid Journal   (Followers: 9)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 8)
Archives of Electrical Engineering     Open Access   (Followers: 12)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 9)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 26)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 21)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 37)
Biomedical Instrumentation & Technology     Hybrid Journal   (Followers: 6)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 12)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (Followers: 1)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 42)
China Communications     Full-text available via subscription   (Followers: 7)
Chinese Journal of Electronics     Hybrid Journal  
Circuits and Systems     Open Access   (Followers: 15)
Consumer Electronics Times     Open Access   (Followers: 5)
Control Systems     Hybrid Journal   (Followers: 219)
Edu Elektrika Journal     Open Access  
Electronic Design     Partially Free   (Followers: 93)
Electronic Markets     Hybrid Journal   (Followers: 8)
Electronic Materials Letters     Hybrid Journal   (Followers: 3)
Electronics     Open Access   (Followers: 78)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 9)
Electronics For You     Partially Free   (Followers: 80)
Electronics Letters     Hybrid Journal   (Followers: 27)
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 46)
Energy Harvesting and Systems : Materials, Mechanisms, Circuits and Storage     Hybrid Journal   (Followers: 4)
Energy Storage Materials     Full-text available via subscription   (Followers: 2)
EPJ Quantum Technology     Open Access  
EURASIP Journal on Embedded Systems     Open Access   (Followers: 12)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Foundations and Trends® in Signal Processing     Full-text available via subscription   (Followers: 10)
Frequenz     Hybrid Journal   (Followers: 1)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 1)
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (Followers: 176)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 5)
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 89)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 74)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 42)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 9)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal  
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 60)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 66)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 53)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 18)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 36)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 18)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 26)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 64)
IEEE Transactions on Signal and Information Processing over Networks     Full-text available via subscription   (Followers: 11)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 13)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 5)
IET Cyber-Physical Systems : Theory & Applications     Open Access  
IET Microwaves, Antennas & Propagation     Hybrid Journal   (Followers: 31)
IET Power Electronics     Hybrid Journal   (Followers: 40)
IET Wireless Sensor Systems     Hybrid Journal   (Followers: 18)
IETE Journal of Education     Open Access   (Followers: 4)
IETE Journal of Research     Open Access   (Followers: 10)
IETE Technical Review     Open Access   (Followers: 13)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 2)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (Followers: 45)
Industry Applications, IEEE Transactions on     Hybrid Journal   (Followers: 16)
Informatik-Spektrum     Hybrid Journal   (Followers: 2)
Instabilities in Silicon Devices     Full-text available via subscription  
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 12)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 18)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 8)
International Journal of Antennas and Propagation     Open Access   (Followers: 11)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 4)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 4)
International Journal of Computer & Electronics Research     Full-text available via subscription   (Followers: 3)
International Journal of Control     Hybrid Journal   (Followers: 11)
International Journal of Electronics     Hybrid Journal   (Followers: 6)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 14)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 2)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Image, Graphics and Signal Processing     Open Access   (Followers: 11)
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 7)
International Journal of Nanoscience     Hybrid Journal   (Followers: 1)
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 3)
International Journal of Power Electronics     Hybrid Journal   (Followers: 19)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 9)
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 3)
International Journal of Wireless and Microwave Technologies     Open Access   (Followers: 6)
International Journal on Communication     Full-text available via subscription   (Followers: 12)
International Journal on Electrical and Power Engineering     Full-text available via subscription   (Followers: 9)
International Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
Journal of Biosensors & Bioelectronics     Open Access   (Followers: 3)
Journal of Advanced Dielectrics     Open Access   (Followers: 1)
Journal of Artificial Intelligence     Open Access   (Followers: 10)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (Followers: 4)
Journal of Computational Intelligence and Electronic Systems     Full-text available via subscription   (Followers: 1)
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 21)
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 7)
Journal of Electromagnetic Analysis and Applications     Open Access   (Followers: 7)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 7)
Journal of Electronics (China)     Hybrid Journal   (Followers: 4)
Journal of Energy Storage     Full-text available via subscription   (Followers: 3)
Journal of Field Robotics     Hybrid Journal   (Followers: 2)
Journal of Guidance, Control, and Dynamics     Full-text available via subscription   (Followers: 142)
Journal of Information and Telecommunication     Open Access  
Journal of Intelligent Procedures in Electrical Technology     Open Access   (Followers: 3)
Journal of Low Power Electronics     Full-text available via subscription   (Followers: 6)
Journal of Low Power Electronics and Applications     Open Access   (Followers: 7)
Journal of Microwaves, Optoelectronics and Electromagnetic Applications     Open Access   (Followers: 9)
Journal of Nuclear Cardiology     Hybrid Journal  
Journal of Optoelectronics Engineering     Open Access   (Followers: 2)
Journal of Physics B: Atomic, Molecular and Optical Physics     Hybrid Journal   (Followers: 27)
Journal of Semiconductors     Full-text available via subscription   (Followers: 4)
Journal of Sensors     Open Access   (Followers: 24)
Journal of Signal and Information Processing     Open Access   (Followers: 9)
Jurnal Rekayasa Elektrika     Open Access  
Learning Technologies, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Magnetics Letters, IEEE     Hybrid Journal   (Followers: 7)
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 2)
Metrology and Measurement Systems     Open Access   (Followers: 5)
Microelectronics and Solid State Electronics     Open Access   (Followers: 17)
Nanotechnology Magazine, IEEE     Full-text available via subscription   (Followers: 30)
Nanotechnology, Science and Applications     Open Access   (Followers: 6)
Nature Electronics     Hybrid Journal  
Networks: an International Journal     Hybrid Journal   (Followers: 6)
Open Journal of Antennas and Propagation     Open Access   (Followers: 8)
Optical Communications and Networking, IEEE/OSA Journal of     Full-text available via subscription   (Followers: 14)
Paladyn, Journal of Behavioral Robotics     Open Access   (Followers: 1)
Problemy Peredachi Informatsii     Full-text available via subscription  
Progress in Quantum Electronics     Full-text available via subscription   (Followers: 7)
Pulse     Full-text available via subscription   (Followers: 5)
Radiophysics and Quantum Electronics     Hybrid Journal   (Followers: 2)
Recent Advances in Communications and Networking Technology     Hybrid Journal   (Followers: 3)
Recent Advances in Electrical & Electronic Engineering     Hybrid Journal   (Followers: 10)
Security and Communication Networks     Hybrid Journal   (Followers: 2)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 50)
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Services Computing, IEEE Transactions on     Hybrid Journal   (Followers: 4)
Software Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 74)
Solid-State Circuits Magazine, IEEE     Hybrid Journal   (Followers: 12)
Solid-State Electronics     Hybrid Journal   (Followers: 8)
Superconductor Science and Technology     Hybrid Journal   (Followers: 3)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 3)
Technical Report Electronics and Computer Engineering     Open Access  
TELE     Open Access  
Telematique     Open Access  
TELKOMNIKA (Telecommunication, Computing, Electronics and Control)     Open Access   (Followers: 8)
Universal Journal of Electrical and Electronic Engineering     Open Access   (Followers: 6)
Visión Electrónica : algo más que un estado sólido     Open Access   (Followers: 1)
Wireless and Mobile Technologies     Open Access   (Followers: 5)
Wireless Power Transfer     Full-text available via subscription   (Followers: 4)
Women in Engineering Magazine, IEEE     Full-text available via subscription   (Followers: 11)
Електротехніка і Електромеханіка     Open Access  

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Journal Cover Radiophysics and Quantum Electronics
  [SJR: 0.336]   [H-I: 11]   [2 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1573-9120 - ISSN (Online) 0033-8443
   Published by Springer-Verlag Homepage  [2350 journals]
  • Backward-Wave Oscillator Regime in the Magnetosphere Cyclotron Maser Under
           an Arbitrary Direction of Wave Propagation Relative to an External
           Magnetic Field
    • Authors: V. S. Grach; A. G. Demekhov
      Pages: 595 - 608
      Abstract: We generalize the equations, which describe the backward-wave oscillator regime in the magnetized plasma in the presence of a jump (“step”) in the velocity distribution function of energetic charged particles, to the case of an arbitrary direction of the wave relative to an external magnetic field and an arbitrary wave mode. The dependence of instability threshold on the angle χ between the wave vector k and the external magnetic field B0 for whistler-mode waves and a slow extraordinary wave (Z-mode) is determined.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9830-6
      Issue No: Vol. 60, No. 8 (2018)
       
  • On Spatial Structuring of the F2 Layer Studied by the Satellite Radio
           Sounding of the Ionosphere Disturbed by High-Power HF Radio Waves
    • Authors: E. D. Tereshchenko; V. A. Turyansky; B. Z. Khudukon; R. Yu. Yurik; V. L. Frolov
      Pages: 609 - 617
      Abstract: We present the results of studying the characteristics of the artificial plasma structures excited in the ionospheric F2 region modified by high-power HF radio waves. The experiments were carried out at the Sura heating facility using satellite radio sounding of the ionosphere. The plasma density profile was reconstructed with the highest possible spatial resolution for today, about 4 km. In a direction close to the magnetic zenith of the pump wave, the following phenomena were observed: the formation of a cavity with a 15% lower plasma density at the altitudes of the F2 layer and below; the formation of an area with plasma density increased by 12% at altitudes greater than 400 km. With a long-term quasiperiodic impact of the pump wave on the ionosphere, wavy large-scale electron-density perturbations (the meridional scale λx ≈ 130 km and the vertical scale λz ≈ 440 km) are also formed above the Sura facility. These perturbations can be due to the plasma density modulation by an artificial acoustic-gravity wave with a period of 10.6 m, which was formed by the heat source inside a large-scale cavity with low plasma density; there is generation of the electron density irregularities for the electrons with ΔNe/Ne ≈ 3% in the form of layers having the sizes 10–12 km along and about 24 km across the geomagnetic field, which are found both below and above the F2-layer maximum. The mechanisms of the formation of these plasma structures are discussed.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9831-5
      Issue No: Vol. 60, No. 8 (2018)
       
  • First Joint Observations of Radio Aurora by the VHF and HF Radars of the
           ISTP SB RAS
    • Authors: O. I. Berngardt; V. P. Lebedev; K. A. Kutelev; D. S. Kushnarev; K. V. Grkovich
      Pages: 618 - 639
      Abstract: Two modern radars for diagnosis of the ionosphere by the radio-wave backscattering method, namely, the Irkutsk incoherent scatter radar at VHF (IISR, 154–162 MHz) and the Ekaterinburg coherent radar at HF (EKB, 8–20 MHz) are operated at the Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences (ISTP SB RAS). The paper analyzes the results of joint observations of strong scattering (radio aurora) on June 8, 2015. To determine the geographical position of the radio aurora, we developed original methods that take into account both the features of the radio-wave propagation and the features of the radar antenna systems. It is shown that there are areas where the spatial position of the HF and VHF radio aurora can coincide. This permits using the radars as a single complex for diagnosis of the characteristics of small-scale high-latitude irregularities in the ionospheric E and F layers. A comparative analysis of the characteristics and temporal dynamics of the radio-aurora region in the HF and VHF ranges is performed. Using the DMSP satellite data, it has been shown that the radio aurora dynamics during this experiment with the EKB radar can be related with the spatial dynamics of the localized area with high electric field, which moves from high to equatorial latitudes. It is found that due to the broader field of view, radio aurora at the HF radar was stably observed 6–12 min earlier than at the VHF radar. This permits using the EKB radar data for prediction of the radio-aurora detection by the IISR radar.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9832-4
      Issue No: Vol. 60, No. 8 (2018)
       
  • Ozone Content Variability in the Atmosphere Above Nizhny Novgorord.
           Comparison of the Results of the Radiometric and Satellite Measurements,
           Reanalysis, and Numerical Simulation
    • Authors: T. S. Ermakova; S. P. Smyshlyaev; M. Yu. Kulikov; M. V. Belikovich; A. A. Krasil’nikov; V. G. Ryskin; A. A. Nechaev; A.M. Feigin
      Pages: 640 - 652
      Abstract: We compare the results of observations and numerical simulation of the ozone-content variability in the atmosphere above Nizhny Novgorod for the winters 2015 and 2016. The data of the local ground-based measurements and the MERRA reanalysis, the satellite data (SBUV device), and the numerical-simulation results are used. The analysis of the results demonstrates similar patterns of the ozone-content variability for all data sources. The stable altitude maximum in the middle stratosphere with the short-term intervals of ozone-density increase is observed. Using the numerical-analysis data allows one to estimate the influence of the photochemical and dynamic factors on the observed ozone-content variability in the winter months in the atmosphere above Nizhny Novgorod.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9833-3
      Issue No: Vol. 60, No. 8 (2018)
       
  • The Influence of the Motion of a Strongly Magnetized Plasma on Radiation
           from a Traveling-Wave Antenna
    • Authors: D. D. Bareev; V. G. Gavrilenko; V. D. Pikulin
      Pages: 653 - 660
      Abstract: We consider the problem of radiation from a traveling-wave antenna in a warm electron plasma which moves along a strong magnetic field at a constant velocity. To describe the electromagnetic properties of the plasma, we use the diagonal tensor of dielectric permittivity, which is calculated for a magnetized plasma with the Maxwellian electron velocity distribution allowing for collisions of electrons with neutral molecules. The dispersion relation is analyzed numerically, and expressions for the field amplitudes in the wave zone are obtained. The radiation resistance of the antenna is calculated. It is shown that as the phase velocity of the traveling current wave in the antenna approaches the average velocity of the plasma motion, the radiation field decreases exponentially with distance from the source as a result of the efficient transfer of the wave energy to the plasma electrons due to collisionless interaction.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9834-2
      Issue No: Vol. 60, No. 8 (2018)
       
  • Gas-Flow Perturbation by a High-Power Heat Source
    • Authors: I. S. Abramov; V. E. Semenov
      Pages: 661 - 669
      Abstract: We consider a gas-dynamic model of a one-dimensional flow of non-viscous perfect gas in the absence of heat conduction when a high-power localized heat source is switched on. Within the framework of this model, it is possible to thoroughly analyze the problem of the gas-flow regimes, which occur as a result of switch-on of such a source, in a wide range of values of the energy-deposition power and initial gas-dynamic characteristics of the flow. Eventually, we obtain a sufficiently general insight into the character of the resulting flows and the conditions of their realizations.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9835-1
      Issue No: Vol. 60, No. 8 (2018)
       
  • Modeling of Thermal Lenses in Cr:CdSe and Cr:ZnSe Chalcogenide Gain Media
    • Authors: A. Yu. Konstantinov; O. V. Martynova; A. P. Zinovyev
      Pages: 670 - 679
      Abstract: We estimate thermal aberrations in Cr:CdSe and Cr:ZnSe chalcogenide crystals exposed to continuous-wave electromagnetic radiation at a wavelength of 1907 nm. Using the SIMULIA Abaqus software suite, deformation of such materials during their heating due to absorption of part of the radiation is simulated numerically. On the basis of the obtained results, the focal distances of the lenses induced in crystalline media are calculated by the matrix optics method.
      PubDate: 2018-01-01
      DOI: 10.1007/s11141-018-9836-0
      Issue No: Vol. 60, No. 8 (2018)
       
  • Interference Switch of a Superconducting Resonance Microwave Compressor
    • Authors: S. N. Artemenko; G. M. Samoylenko
      Pages: 513 - 517
      Abstract: We propose a superconducting interference switch of a resonance microwave compressor on the basis of a waveguide H-plane tee, whose lateral arm contains a switching cavity having controllable parameters and based on another H-plane tee. The transmission coefficient of the switch is evaluated for the case of controlling the Q-factor and/or resonance frequency of the switching cavity externally. It is shown that the proposed switch can ensure high-efficiency transmission of the stored energy to the load at a minimal value of the controlling parameter (compared with the known solutions).
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9821-z
      Issue No: Vol. 60, No. 7 (2017)
       
  • Terahertz Heterodyne Receiver with an Electron-Heating Mixer and a
           Heterodyne Based on the Quantum-Cascade Laser
    • Authors: S.V. Seliverstov; V. A. Anfertyev; I. V. Tretyakov; I. A. Ozheredov; P. M. Solyankin; L. S. Revin; V. L. Vaks; A. A. Rusova; G. N. Goltsman; A. P. Shkurinov
      Pages: 518 - 524
      Abstract: We study characteristics of the laboratory prototype of a terahertz heterodyne receiver with an electron-heating mixer and a heterodyne based on the quantum-cascade laser. The results obtained demonstrate the possibility to use this receiver as a basis for creation of a high-sensitivity terahertz spectrometer, which can be used in many basic and practical applications. A significant advantage of this receiver will be the possibility of placing the mixer and heterodyne in the same cryostat, which will reduce the device dimensions considerably. The obtained experimental results are analyzed, and methods of optimizing the parameters of the receiver are proposed.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9822-y
      Issue No: Vol. 60, No. 7 (2017)
       
  • Eigenmodes of Multilayer Slit Structures
    • Authors: A. N. Kovalenko
      Pages: 525 - 535
      Abstract: We generalize the high-efficiency numerical-analytical method of calculating the eigenmodes of a microstrip line, which was proposed in [1], to multilayer slit structures. The obtained relationships make it possible to allow for the multilayer nature of the medium on the basis of solving the electrodynamic problem for a two-layer structure. The algebraic models of a single line and coupled slit lines in a multilayer dielectric medium are constructed. The matrix elements of the system of linear algebraic equations, which is used to determine the expansion coefficients of the electric field inside the slits in a Chebyshev basis, are converted to rapidly convergent series. The constructed models allow one to use computer simulation to obtain numerical results with high speed and accuracy, regardless of the number of dielectric layers. The presented results of a numerical study of the method convergence confirm high efficiency of the method.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9823-x
      Issue No: Vol. 60, No. 7 (2017)
       
  • Resonances of Surface Plasmons in an Elliptical Glass Cylinder Covered
           with a Layer of Silver
    • Authors: A. P. Anyutin; I. P. Korshunov; A. D. Shatrov
      Pages: 536 - 543
      Abstract: We study the plasmon resonances, which occur in the two-dimensional problem of diffraction of a plane wave on a glass cylinder encased in a silver layer, under the assumption that the media interface boundaries are confocal ellipses. Numerical methods are used to calculate the spectra of scattering and absorption in the optical wavelength range. The obtained analytical expressions allow determining the resonance parameters of the structure within the quasistatic approximation.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9824-9
      Issue No: Vol. 60, No. 7 (2017)
       
  • Analytical Calculation and Numerical Modeling of Temporal Characteristics
           of a Short Pulse Propagating in a Planar Waveguide with Rough Boundaries
    • Authors: V. G. Gavrilenko; M. S. Zhukov; S. N. Zhukov; V. A. Yashnov
      Pages: 544 - 551
      Abstract: We present the results of numerical modeling by the Monte-Carlo method of the pulse signal propagation in a planar waveguide with smooth rough boundaries during bistatic sounding. The results of the numerical and analytical calculations in the case of single reflection are compared. Temporal characteristics of the received signal with multiple reflection and a low grazing angle are analyzed.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9825-8
      Issue No: Vol. 60, No. 7 (2017)
       
  • Geomagnetic Perturbations Caused by a Sphere Moving in the Conducting
           Liquid
    • Authors: V. V. Surkov; V. M. Sorokin; A. K. Yashchenko
      Pages: 552 - 560
      Abstract: We study the external magnetic-field perturbations caused by flows of a conducting incompressible liquid which streamlines a dielectric sphere moving in it. An analytical solution of the problem is obtained for the case of a potential flow of liquid and an arbitrary orientation of the external magnetic field. Angular distribution of the magnetic and electric field perturbations, as well as the dependence of their amplitudes on distance, are examined. The directions in which the magnetic and electric components of the perturbations are the maximum are determined. Temporal dependences and the spectra of electromagnetic signals are analyzed for different parameters of the problem. The results of analytical research are illustrated by numerical calculations.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9826-7
      Issue No: Vol. 60, No. 7 (2017)
       
  • A Method for Estimating the Time Delays During the Signal Propagation from
           the Satellite Communication Systems with the Code-Division Access
    • Authors: R. A. Ershov; O. A. Morozov; V. R. Fidelman
      Pages: 561 - 570
      Abstract: We propose a method for estimating mutual time delays during the signal propagation from several radiation sources of a satellite communication system with the code division access to be used when solving the problem of locating the signal sources. To eliminate ambiguity in determining the delays, which is observed in the presence of several sources in the system, we propose an algorithm which is based on the sequential elimination of the determined delays from the signals and the subsequent correlation processing.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9827-6
      Issue No: Vol. 60, No. 7 (2017)
       
  • Study of the Efficiency of the Polarization-Diversity Reception of a Very
           Low Frequency Signal Against the Background of Atmospheric Noise and
           Jamming in the Communication-Channel Model
    • Authors: S.A. Metelev; A.V. Lvov
      Pages: 571 - 582
      Abstract: We propose a model of forming the signals and interference in the very low frequency wave range. Using this model, we determine the potentials of the space-polarization interference compensators in a communication channel with natural interference and jamming.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9828-5
      Issue No: Vol. 60, No. 7 (2017)
       
  • Statistical Characteristics of the Gaussian-Noise Spikes Exceeding the
           Specified Threshold as Applied to Discharges in a Thundercloud
    • Authors: V. V. Klimenko
      Pages: 583 - 593
      Abstract: We obtain expressions for the probabilities of the normal-noise spikes with the Gaussian correlation function and for the probability density of the inter-spike intervals. As distinct from the delta-correlated noise, in which the intervals are distributed by the exponential law, the probability of the subsequent spike depends on the previous spike and the interval-distribution law deviates from the exponential one for a finite noise-correlation time (frequency-bandwidth restriction). This deviation is the most pronounced for a low detection threshold. Similarity of the behaviors of the distributions of the inter-discharge intervals in a thundercloud and the noise spikes for the varying repetition rate of the discharges/spikes, which is determined by the ratio of the detection threshold to the root-mean-square value of noise, is observed. The results of this work can be useful for the quantitative description of the statistical characteristics of the noise spikes and studying the role of fluctuations for the discharge emergence in a thundercloud.
      PubDate: 2017-12-01
      DOI: 10.1007/s11141-017-9829-4
      Issue No: Vol. 60, No. 7 (2017)
       
  • Generation of the Super Small-Scale Artificial Ionospheric Irregularities
           in the Ionosphere Pumped by High-Power HF Radio Waves
    • Authors: V. L. Frolov; I. A. Bolotin; G. G. Vertogradov; V. G. Vertogradov
      Pages: 450 - 455
      Abstract: We present the results of experimental studies of generation of super small-scale plasma-density irregularities in the ionospheric F2 region pumped by a high-power HF O-mode wave at frequencies close to the fourth gyroharmonic in the region of its interaction with the plasma. The experiments were performed using the Sura heating facility. The super small-scale irregularities were sounded by GPS satellite signals. It has been shown that super small-scale irregularities are excited with the most efficiency in the region of the magnetic zenith for the pump wave. The intensity of such irregularities and typical times of their development and decay are determined.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9813-z
      Issue No: Vol. 60, No. 6 (2017)
       
  • Sporadic E S Layers at High Latitudes During a Magnetic Storm of March 17,
           2015 According to the Vertical and Oblique Ionospheric Sounding Data
    • Authors: D.V. Blagoveshchensky; O.A. Maltseva; M. M. Anishin; D.D. Rogov
      Pages: 456 - 466
      Abstract: We consider the behavior of the parameters of the ionospheric E s layers according to the vertical sounding at the Sodankylä observatory and oblique sounding at the Lovozero (Murmansk region)—Gor’kovskaya station (Leningrad region) path during a superstorm of March 17, 2015. Temporal and spatial behavior of these parameters is compared. It was found that the storm significantly distorted the normal course of variations of the sporadic E s layer characteristics. Specific behavior of the layers during a storm at points separated by about 300 km was detected. With the help of ray tracing calculations using the IRI model, oblique sounding ionograms were constructed for the radio path analyzed. Primary attention is given to the maximum usable frequency of the F 2 layer—MUF-F 2. Additionally, for the disturbed conditions where there is only a high-power E s layer on the experimental ionograms, the values of MUF-E s and the ratio K =MUF-E s/f o E s for various cutoff frequencies f o E s of the E s layer and its altitudes \( {h}_{E_s} \) are calculated within the framework of the well-known approximations. Calculations for the case of weak disturbance and semitransparent E s layers are carried out with the IRI model adapted to the current diagnostics parameters. It was found that the calculated and experimental values of MUF-F 2 are close to each other or coincide, while this cannot be said about MUF-E s. The calculated and experimental values of MUF-E s can be matched in the model of mirror reflection from a flat layer for intense layers and the model of the E layer for thick E s layers of low intensity.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9814-y
      Issue No: Vol. 60, No. 6 (2017)
       
  • Efficiency of the Systems of Active Compensation for Acoustic
           Monochromatic Signals
    • Authors: I. Sh. Fiks; G. E. Fiks
      Pages: 485 - 493
      Abstract: We study the efficiency of the systems of active compensation for acoustic monochromatic signals having inexactly known frequencies. The studies are performed in the frequency domain for openloop systems.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9817-8
      Issue No: Vol. 60, No. 6 (2017)
       
  • Global Stability of a Synchronous Regime in Hub Clusters of the Power
           Networks
    • Authors: A. S. Dmitrichev; D. G. Zakharov; V. I. Nekorkin
      Pages: 506 - 512
      Abstract: We study stability of a synchronous regime in hub clusters of the power networks, which are simulated by ensembles of phase oscillators. An approach allowing one to estimate the regions in the parameter space, which correspond to the global asymptotic stability of this regime, is presented. The method is illustrated by an example of a hub cluster consisting of one generator and two consumers.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9820-0
      Issue No: Vol. 60, No. 6 (2017)
       
 
 
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