Radio-acoustic sounding of the ionosphere
| Autor: | G. P. Komrakov, V. O. Rapoport, Yu. A. Sazonov, N. A. Mityakov, N. A. Ryzhov, V. A. Zinichev |
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| Rok vydání: | 2009 |
| Předmět: |
Physics
Nuclear and High Energy Physics Scattering Acoustics Astronomy and Astrophysics Statistical and Nonlinear Physics Sound power Electronic Optical and Magnetic Materials law.invention Pulse (physics) Depth sounding Computer Science::Sound law Electrical and Electronic Engineering Ionosphere Radar Remote sensing Radio wave Common emitter |
| Zdroj: | Radiophysics and Quantum Electronics. 52:117-121 |
| ISSN: | 1573-9120 0033-8443 |
| Popis: | 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 emitter had an acoustic power of about 1 kW and operated in the chirp-modulation regime with frequency variation from 15.9 to 18.4 Hz. The radar transmitter operated in the pulse regime at a frequency of 9 MHz and had an average power of 30 kW. The power of the radio signal scattered from a sound wave in the ionosphere did not exceed 10−16 W, and the measured values of the temperature in the scattering region ranged from 190 to 225 K. |
| Databáze: | OpenAIRE |
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