| Autor: | N. A. Mityakov, Yu. A. Sazonov, F. I. Vybornov, V. A. Zinichev, N. A. Ryzhov, V. O. Rapoport |
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| Rok vydání: | 2003 |
| Předmět: |
Physics
Nuclear and High Energy Physics Paraboloid Beam diameter business.industry SODAR Astronomy and Astrophysics Statistical and Nonlinear Physics Electronic Optical and Magnetic Materials Bistatic radar Depth sounding Optics Electrical and Electronic Engineering Antenna (radio) business Beam (structure) Zenith Computer Science::Information Theory |
| Zdroj: | Radiophysics and Quantum Electronics. 46:172-179 |
| ISSN: | 0033-8443 |
| Popis: | 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 transmitting acoustic antenna having 8° beam width was pointed to the zenith. The four-beam operation of the receiving paraboloid was implemented by mounting four separate microphones in its focal plane. The width of each beam of the receiving antenna was 2.5°. The beams of the transmitting and receiving antennas crossed at a height about 500 m. The sounding frequency was equal to 576 Hz. The acoustic-pulse duration and repetition period were 2 s and 8 s, respectively. A new procedure for experimental-data processing on the basis of analysis of temporary variations in the Doppler frequency shift of a scattered signal is proposed and approved. The approach based on using structural functions is applied. The preliminary results of analysis of one observation session are presented. |
| Databáze: | OpenAIRE |
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