Zobrazeno 1 - 10
of 43
pro vyhledávání: '"A. L. Gavrik"'
Publikováno v:
2020 IEEE Ukrainian Microwave Week (UkrMW).
Results of non-stationary signal processing and interpretation using the simplest (ARX) regression model of real measurements with spaced antennas are presented. The obtained estimates of the mean velocity of the random medium travelling between ray-
Autor:
V. M. Smirnov, V. V. Yushkov, A. L. Gavrik, B. V. Chernyshev, O. V. Yushkova, V. N. Marchuk, I. N. Dutyshev, A. V. Medvedev, M. A. Laptev, V. P. Lebedev, A. A. Petrukovich
Publikováno v:
Solar System Research. 52:287-300
An overview of radiophysical investigations of the lunar soil and plasma shell by active radar detection with the use of spacecraft is presented. The possibility is analyzed of conducting bistatic measurements using the Irkutsk Incoherent Scattering
Publikováno v:
Journal of Communications Technology and Electronics. 61:1347-1353
A method for construction of a 2D radio image of an asteroid from the radar data obtained with the use of a continuous monochromatic signal has been tested. The method is based on the inverse focused synthesis of the antenna aperture due to the rotat
Autor:
A. L. Gavrik
Publikováno v:
Journal of Radio Electronics. 2018
Publikováno v:
Journal of Communications Technology and Electronics. 58:985-995
The possibility of detecting wave processes in the atmosphere-ionosphere system of the planet from perturbations of radio signals in radio occultation experiments is studied. A method of interpretation of the radio-raying data that does not employ in
Autor:
V. M. Smirnov, Anatolii I Efimov, N. A. Savich, A. L. Gavrik, L. N. Samoznaev, Stanislav Matyugov, O. I. Yakovlev, Yurii V Gulyaev, Aleksandr G Pavelyev, Neon A Armand
Publikováno v:
Physics-Uspekhi. 53:517-523
The magnetic field created by this antenna was measuredat the distance 1200 km from the transmitter, in the Bare-ntsburg Observatory, by a three-component inductionmagnetometer. The radiation experiments were conductedwithin a few days, mostly at nig
Publikováno v:
Journal of Communications Technology and Electronics. 55:256-262
A new procedure for analyzing the data obtained during radio probing of the Venusian ionosphere is proposed. The experimental results of the two-frequency probing with the use of the “Venera 15” and “Venera 16” orbiters that provide evidence
Publikováno v:
Cosmic Research. 47:208-216
We investigate a method of getting radio images of asteroids by single-position radar with narrowband sounding signal. A model is presented for calculation of power spectra of echo signals of a rotating rough ellipsoid. This model is a useful tool fo
Autor:
A. L. Gavrik, Yu. A. Gavrik
Publikováno v:
Journal of Communications Technology and Electronics. 53:1177-1185
The processed data of radar sounding of asteroid 33342 (1998 WT24) with the help of the Yevpatoria-Medicina bistatic radar system are presented. Variations in the power spectra of echo signals with a wavelength of 6 cm are analyzed for two orthogonal
Publikováno v:
Journal of Communications Technology and Electronics. 53:1044-1051
The inhomogeneous structure of the Venusian daytime ionosphere is investigated on the basis of the data provided by the Venera 15 and Venera 16 space probes. The experimental data obtained from two-frequency radio sounding are restored, processed, an