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Перегляд Радиофизика и радиоастрономия за назвою

Репозиторій DSpace/Manakin

Перегляд Радиофизика и радиоастрономия за назвою

Сортувати за: Порядок: Результатів:

  • Millimeter-Wave Radars for Environmental Studies 
    Vavriv, D.M.; Volkov, V.A.; Bormotov, V.N.; Vynogradov, V.V.; Kozhyn, R.V.; Trush, B.V.; Belikov, A.A.; Semenyuta, V.Ye. (Радиофизика и радиоастрономия, 2002)
    A review is given of recent activities undertaken in the Institute of Radio Astronomy of the National Academy of Sciences of Ukraine for the development of millimeter-wave radars. The radars constructed include cloud radars ...
  • Millimeter wave spectroscopy of the ground, first and second excited torsional states of acetone 
    Armieieva, I.A.; Ilyushin, V.V.; Alekseev, E.A.; Dorovskaya, O.A.; Margulès, L.; Motiyenko, R.A. (Радиофизика и радиоастрономия, 2016)
    Purpose: spectrum investigation of the lowest three torsional states of acetone ( CH₃COCH₃ ) within the frequency ranges 34–150 and 480–620 GHz.
  • Modeling on “Alphabet” of Jovian S-Bursts 
    Arkhipov, A.V. (Радиофизика и радиоастрономия, 2002)
    It is shown that the typical elements of complex S-bursts in dynamic spectra of Jovian decametric radio emission ("alphabet") could be explained by propagation delay of radiation due to helicoidal trajectory of S-emitter.
  • Modification of the Gelfand-Levitan Method for 1-D Multylaered Structure Inverse Problem 
    Drobakhin, O.O.; Andreev, M.V.; Novomlinov, A.; Korotkaya, V.; Sazonov, A.Z. (Радиофизика и радиоастрономия, 2002)
    For dielectric slab with step profile of dielectric constant the Gelfand-Levitan method is correct if peaks of time-domain reflected signal are close to δ-pulses. Combination of parametric spectral methods for obtaining ...
  • Multielement Linear Interferometers with One Remote Element 
    Kopilovich, L.E. (Радиофизика и радиоастрономия, 2005)
    New schemes of constructing multielement linear interferometers based on the difference sets are suggested. It is shown that adding a remote element to the earlier model [3] allows to extend a completely covered spatial-frequency ...
  • Multi-Look Radiometric Correction of SAR Images 
    Bezvesilniy, O.O.; Gorovyi, I.M.; Vynogradov, V.V.; Vavriv, D.M. (Радиофизика и радиоастрономия, 2011)
    Deviations of the aircraft trajectory and instabilities of the aircraft orientation lead to non-uniform illumination of the ground by the antenna beam and, as a result, to radiometric errors in radar images obtained with ...
  • New IEC Standards Requirements to the Parameters of Powerful Electromagnetic Pulsed Disturbances 
    Kravchenko, V.I.; Knyazyev, V.V.; Koliushko, G.M.; Vavriv, L.V. (Радиофизика и радиоастрономия, 2002)
    The European Union Directive on EMC defines a new concept of providing electromagnetic compatibility. The Directive mandates that all electromagnetic phenomena which can influence the operation of technical devices need ...
  • Noise Reduction Algorithm Based on Template Wavelet Coefficients 
    Bezvesilniy, O.O.; Vynogradov, V.V.; Schuenemann, K. (Радиофизика и радиоастрономия, 2000)
    In the paper, a new algorithm based on the application of template wavelet coefficients is proposed to solve the problems concerning noise reduction in the vicinity of edges in signals and images and suppressing parasitic ...
  • Non-Linear Bistability of a Small Metallic Particle in Alternating Electric Field 
    Grechko, L.G.; Davidova, O.A.; Ogenko, V.M.; Shkoda, N.G. (Радиофизика и радиоастрономия, 2001)
  • Nonredundant Hexagonal Grid Interferometer Configurations with Element-Free Central Domains 
    Kopilovich, L.E. (Радиофизика и радиоастрономия, 2004)
    Nonredundant hexagonal grid interferometers having element-free central domains are configured with the difference set procedure. The obtained configurations possess third-order symmetry that provides more uniform coverage ...
  • Numerical Implementation of Cross-Section Method for Irregular Waveguides 
    Ramm, A.G.; Voitovich, N.N.; Zamorska, O.F. (Радиофизика и радиоастрономия, 2000)
    Wave scattering in irregular waveguides is investigated. The cross-section method is considered as a method for calculation of the field in a waveguide consisting of two regular waveguides with different cross-sections ...
  • On a Problem of Anomalous Absorption of Far-Infrared Radiation by Small Metallic Particles 
    Grechko, L.G.; Pinchuk, A.A.; Kurskoi, Yu.S.; Lesjo, A. (Радиофизика и радиоастрономия, 2000)
  • On the Basic Concepts of UWB Radar Scan 
    Astanin, L.Yu.; Kostylev, A.A.; Fliorova, A.A. (Радиофизика и радиоастрономия, 2002)
    In this paper, the terms in wide use, the Ultra Wideband (UWB) signal and the Ultra Shot Impulse (USI), are discussed. Their usage conditions are considered and the difference in meanings is determined. As main tool for ...
  • Optical and Radio Frequency Diagnostics of the Ionosphere over the Sura Facility: Review of Results 
    Kagan, L.M.; Nicolls, M.J.; Kelley, M.C.; Frolov, V.L.; Belikovich, V.V.; Bakhmet’eva, N.V.; Komrakov, G.P.; Nedzvetski, D.I.; Uryadov, V.P.; Yampolski, Yu.M.; Galushko, V.G.; Kolosko, A.V.; Zalizovski, A.V.; Kasheev, S.B.; Blagoveshenskaya, N.F.; Kornienko, V.A.; Borisova, T.D.; Gurevich, A.V.; Vertogradov, G.G.; Vertogradov, V.G.; Trondsen, T.S.; Donovan, E. (Радиофизика и радиоастрономия, 2006)
    We give an overview of the design and results of the optical-backscatter-heating campaign which we conducted at the Sura facility near Nizhniy Novgorod, Russia on August 10-20, 2004.
  • Oscillations of Magnetized Grains in Complex Plasmas 
    Yaroshenko, V.V.; Minakov, A.A. (Радиофизика и радиоастрономия, 2004)
    Исследованы вертикальные осцилляции одиночной намагниченной заряженной пылевой частицы, а также цепочки намагниченных частиц, находящихся в газовом разряде и во внешнем почти вертикальном магнитном поле. Показано, что сила, ...
  • Pipeline Signal Processing with High Resolution in Both Time and Frequency Domains 
    Sosnytskiy, S.V.; Vavriv, D.M. (Радиофизика и радиоастрономия, 2015)
    An algorithm for real time signal processing with high accuracy of determining both frequency and time characteristics of RF signals is proposed. The algorithm provides frequency resolution through FFT processing and pulse ...
  • Propagation of Short Electromagnetic Pulses through Nonconducting Media with Electric and Magnetic Dipole Currents 
    Harmuth, H.F.; Lukin, K.A. (Радиофизика и радиоастрономия, 2002)
    Propagation of electromagnetic signals through a non-conducting medium with very low density of neutral gas is considered with taking into account both electric and magnetic dipole currents. A new approach based on microscopic ...
  • Propagation of Short Pulses in Plasma Half-Space (Ionosphere) 
    Gutman, A.L. (Радиофизика и радиоастрономия, 2002)
    The exact solution of the problem in the half-space of non-homogeneous plasma is obtained, and an asymptotic method for the same task as well. The estimations of the non-linearity and the electron-atom collisions influence ...
  • Pulse Scattering on Objects in the Inhomogeneous Conducting Medium 
    Varyaniza-Roshchupkina, L.A.; Kovalenko, V.O. (Радиофизика и радиоастрономия, 2002)
    The objective of the work is to present the results of computer simulation of the problem of pulse scattering on cylinder objects buried in the inhomogeneous conducting medium. The finite difference time domain method ...
  • Quadratic red shift law and the non-Archimedean Universe 
    Rvachev, V.L.; Avinash, K. (Радиофизика и радиоастрономия, 2001)

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