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  Subjects -> ELECTRONICS (Total: 158 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: 3)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 10)
Advances in Microelectronic Engineering     Open Access   (Followers: 12)
Advances in Power Electronics     Open Access   (Followers: 28)
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 261)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 24)
Annals of Telecommunications     Hybrid Journal   (Followers: 8)
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: 18)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 34)
Biomedical Instrumentation & Technology     Hybrid Journal   (Followers: 6)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 10)
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: 44)
China Communications     Full-text available via subscription   (Followers: 7)
Circuits and Systems     Open Access   (Followers: 15)
Consumer Electronics Times     Open Access   (Followers: 5)
Control Systems     Hybrid Journal   (Followers: 226)
Edu Elektrika Journal     Open Access  
Electronic Design     Partially Free   (Followers: 92)
Electronic Markets     Hybrid Journal   (Followers: 8)
Electronic Materials Letters     Hybrid Journal   (Followers: 3)
Electronics     Open Access   (Followers: 76)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 9)
Electronics For You     Partially Free   (Followers: 78)
Electronics Letters     Hybrid Journal   (Followers: 27)
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 45)
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: 7)
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: 181)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 4)
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 84)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 71)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 39)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 8)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal  
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 57)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 64)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 53)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 17)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 36)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 17)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 28)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 62)
IEEE Transactions on Signal and Information Processing over Networks     Full-text available via subscription   (Followers: 9)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 14)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 6)
IET Microwaves, Antennas & Propagation     Hybrid Journal   (Followers: 31)
IET Power Electronics     Hybrid Journal   (Followers: 38)
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: 11)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 2)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (Followers: 46)
Industry Applications, IEEE Transactions on     Hybrid Journal   (Followers: 15)
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: 10)
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: 13)
International Journal of Electronics     Hybrid Journal   (Followers: 6)
International Journal of Electronics & Data Communication     Open Access   (Followers: 11)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 13)
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 Nano Devices, Sensors and Systems     Open Access   (Followers: 10)
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: 14)
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: 19)
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: 150)
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: 7)
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: 31)
Journal of Semiconductors     Full-text available via subscription   (Followers: 4)
Journal of Sensors     Open Access   (Followers: 25)
Journal of Signal and Information Processing     Open Access   (Followers: 9)
Jurnal Rekayasa Elektrika     Open Access  
Learning Technologies, IEEE Transactions on     Hybrid Journal   (Followers: 13)
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: 16)
Nanotechnology Magazine, IEEE     Full-text available via subscription   (Followers: 32)
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: 3)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 51)
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: 5)
Software Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 73)
Solid-State Circuits Magazine, IEEE     Hybrid Journal   (Followers: 12)
Solid-State Electronics     Hybrid Journal   (Followers: 8)
Superconductor Science and Technology     Hybrid Journal   (Followers: 2)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 3)
Technical Report Electronics and Computer Engineering     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: 13)
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  [2351 journals]
  • 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
    • 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)
  • Features of the Ionospheric Artificial Airglow Caused by Ohmic Heating and
           Plasma Turbulence-Accelerated Electrons Induced by HF Pumping of the Sura
           Heating Facility
    • Authors: V. V. Klimenko; S. M. Grach; E.N. Sergeev; A.V. Shindin
      Pages: 431 - 449
      Abstract: We present the results of studying the ionospheric F2 region airglow in the atomic-oxygen red line (λ = 6300Ǻ) when the ionosphere is pumped by high-power HF radio waves. Either thermal modulation of the background airglow brightness or, simultaneously with it, the red-line intensity enhancement were observed, depending on the ionospheric and plasma-wave parameters. Analysis of the red-line emission behavior makes it possible to separate the influence of the ohmic heating and acceleration of electrons by plasma turbulence on the airglow features.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9812-0
      Issue No: Vol. 60, No. 6 (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)
  • Methodical Errors of a High-Precision Airborne Radio Altimeter Operating
           at Low Altitudes Above the Sea Surface
    • Authors: A. I. Baskakov; A.A. Komarov; M. S. Mikhailov
      Pages: 467 - 474
      Abstract: When a high-precision airborne radio altimeter operates at low altitudes in the mode of measuring the sea-surface profile, the local time-dependent backscattering pattern is a characteristic of the reflecting properties of the sea surface in contrast to the majority of other cases where the irradiation spot is significantly greater than the typical sizes of the large-scale surface irregularities. In this case, the altitude estimate at the tracking-system output of the flying-vehicle radio altimeter is the sum of three terms, namely, the altitude to the mean level, the altitude-estimate shift, which varies in time as a function of the slopes of large-scale irregularities, and the component related to the surface topography. The current methodical error of the altitude estimation by the high-precision airborne radio altimeter at low altitudes can be calculated using the justified approximation of the sea-surface large-scale irregularities by a deterministic function.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9815-x
      Issue No: Vol. 60, No. 6 (2017)
  • Use of the Phenomenon of Total Internal Light Reflection for Diagnostics
           of Sea Wind Waves
    • Authors: V. L. Weber
      Pages: 475 - 484
      Abstract: We develop a mathematical model for the formation of underwater images of a perturbed sea surface. On the basis of this model, a method for determination of statistical spatio-temporal characteristics of wind waves, which uses the phenomenon of total internal light reflection at the water—air interface, is proposed.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9816-9
      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)
  • Axisymmetric Resonance Reflector for Relativistic Gigawatt Backward-Wave
    • Authors: M. B. Goykhman; A. V. Gromov; V. V. Kladukhin; N. F. Kovalev; N. G. Kolganov; A. V. Palitsin
      Pages: 494 - 500
      Abstract: We discuss the properties of the resonance reflectors applied in high-power relativistic backward-wave oscillators. The obtained results were used to develop a resonance reflector in the form of a section of a coaxial waveguide for a relativistic backward-wave oscillator operated in the ten-centimeter wavelength range. The results of preliminary experiments agree well with the calculations.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9818-7
      Issue No: Vol. 60, No. 6 (2017)
  • Mean-Frequency Shift of the Envelope Solitons in Media with Cubic Relaxing
    • Authors: S. N. Vlasov
      Pages: 501 - 505
      Abstract: We study the mean-frequency variation of the envelope solitons propagating in nonlinear media with relaxing cubic nonlinearities. It is shown that the mean frequency in the propagation cannot only decrease in the case of the positive nonlinearity coefficient, which was previously known, but also increase in the case of the negative nonlinearity coefficient, which is observed for the gravity waves on a liquid surface.
      PubDate: 2017-11-01
      DOI: 10.1007/s11141-017-9819-6
      Issue No: Vol. 60, No. 6 (2017)
  • Global Stability of a Synchronous Regime in Hub Clusters of the Power
    • 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)
  • Impact of a Strong Magnetic Storm and Two X-Ray Flares on the Ionospheric
           HF Channel in the Summer Solstice of 2015 According to Oblique Sounding in
           the Eurasian Region
    • Authors: V. P. Uryadov; A. A. Kolchev; G. G. Vertogradov; F. I. Vybornov; I. A. Egoshin; M. S. Sklyarevsky; V. V. Shumaev; A. G. Chernov
      Pages: 355 - 373
      Abstract: We present the results of observations of the impact a strong magnetic storm and two X-ray flares in the summer solstice of 2015 on the HF signal characteristics during oblique sounding of the ionosphere in the Eurasian region. It was found that the negative phase of the magnetic storm led to a strong degradation of the ionospheric channel, up to a long blackout on the paths adjacent to the subauroral latitudes. On the midlatitude paths, a decrease in the maximum observable frequency of the F layer reached 50% with respect to the average values for an undisturbed ionosphere. The propagation velocity of the negative phase of a disturbance from the subauroral to the midlatitude ionosphere is determined (it is equal to about 100 m/s). It is shown that during a magnetic storm the least observable frequency and the average signal-to-noise ratio for the propagation mode via the sporadic E s layer correlate well with the auroral AE index. Anomalous signals were detected in the main phase of the magnetic storm on the Cyprus—Rostov-on-Don path when a chirp ionosonde–radio direction finder was operated in the over-the-horizon HF radar mode. On the basis of modeling and comparison with experimental data, it is shown that the anomalous signals are due to scattering of radio waves by small-scale irregularities located in the subauroral ionospheric F region.
      PubDate: 2017-10-01
      DOI: 10.1007/s11141-017-9806-y
      Issue No: Vol. 60, No. 5 (2017)
  • The Time Dependence of a Quasimonochromatic Signal in the Region of
           Destructive Two-Beam Interference
    • Authors: N. S. Bukhman
      Pages: 417 - 429
      Abstract: We consider the time dependence of a total signal from two point acoustic sources emitting similar quasimonochromatic signals (two-beam interference of quasimonochromatic waves). It is shown that the time dependence of the envelope function of the total signal is close to the time dependence of the envelope function of the signal from one source with accuracy up to the delay time. The delay time varies within the limits from the usual (geometric) time in the light bands of the interference field (the constructive-interference region) to the zero one (within the framework of the considered approximations) in the dark bands (the destructive-interference region). At the intermediate points of the interference field, the delay time appears to be complex, i.e., the signal is not only shifted in time, but also distorted.
      PubDate: 2017-10-01
      DOI: 10.1007/s11141-017-9811-1
      Issue No: Vol. 60, No. 5 (2017)
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