Zobrazeno 1 - 10
of 57
pro vyhledávání: '"N. A. Mityakov"'
Publikováno v:
Radiophysics and Quantum Electronics. 54:667-670
We discuss the results of studies of natural and artificial small-scale turbulence in the upper ionosphere. The first data on the spectrum of sizes of irregularities at altitudes 240–340 km were obtained in the 1970s by the method of aspect scatter
Publikováno v:
Radiophysics and Quantum Electronics. 53:297-304
The signals of radio-wave backscattering from small-scale irregularities located at the altitudes from 200 to 400 km were first recorded by the “Sura” facility radar in 2006. The experiments with the “Sura” facility were repeated in the summe
Publikováno v:
Radiophysics and Quantum Electronics. 52:117-121
We present the results of first experiments on radio-acoustic sounding of ionosphere at the altitudes from 70 to 85 km. The sounding was performed in autumn 2006, using a horn acoustic emitter and a radar on the basis of the “Sura” facility. The
Publikováno v:
Radiophysics and Quantum Electronics. 52:20-23
We present the results of the vertical ionosphere sounding at a frequency of 9.02 MHz using the “Sura” facility. Intense backscatter signals from meteor trails were observed at altitudes 100-130 km. Increased background of the scattered signal, w
Publikováno v:
Radiophysics and Quantum Electronics. 51:750-755
We developed and tested a new method for increasing the effective ionosonde power by 20-40 dB, which uses the transceiving antenna of the “Sura” facility. Three sections of this antenna were employed as the receiving antenna of the ionosonde in t
Autor:
N. A. Mityakov
Publikováno v:
Radiophysics and Quantum Electronics. 49:514-519
We consider the principles of development of a parametric antenna in the atmosphere. It is shown that to excite an infrasound at a frequency lower than 1 Hz in the atmosphere, one can use an acoustic system emitting simultaneously two waves whose fre
Publikováno v:
Radiophysics and Quantum Electronics. 48:29-33
This paper presents the results of measurement of the electrical field generated by a high-power acoustic signal in the atmosphere (electro-acoustic sounding). The radiated acoustic power was about 1 kW. The acoustic-signal frequency varied linearly
Autor:
N. A. Mityakov, N. A. Ryzhov, V. A. Zinichev, Yu. A. Sazonov, N. S. Bellyustin, V. O. Rapoport
Publikováno v:
Radiophysics and Quantum Electronics. 47:30-33
In this paper, we discuss the problems of studying the atmospheric turbulence by the method of acoustic sounding and present the results of experiments on acoustic sounding of the atmosphere at an altitude of about 500 m, which were carried out in Zi
Publikováno v:
Radiophysics and Quantum Electronics. 46:172-179
We present the results of acoustic sounding of the atmosphere in summer of 2001. The experiments were carried out using a multibeam bistatic sodar with two parabolic antennas of 15 m in diameter. The distance between the antennas was about 425 m. The
Publikováno v:
Radiophysics and Quantum Electronics
Radiophysics and Quantum Electronics, Springer Verlag, 2013, 56 (6), pp.325-343. ⟨10.1007/s11141-013-9437-x⟩
Radiophysics and Quantum Electronics, Springer Verlag, 2013, 56 (6), pp.325-343. ⟨10.1007/s11141-013-9437-x⟩
International audience; The electric field of a high-power HF radio wave radiated by the Sura facility was measured using onboard instruments of the French microsatellite DEMETER at altitudes of 670 km. The data analysis shows that the high-power rad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe043368cc5281b0bd2ce36d2f67bc28
http://hdl.handle.net/20.500.12278/31762
http://hdl.handle.net/20.500.12278/31762