| Autor: |
Esipov, Igor B., Tarasov, Sergey P., Voronin, Vasily A., Popov, Oleg A. |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings; 6/24/2008, Vol. 1022 Issue 1, p393-396, 4p, 3 Graphs |
| Abstrakt: |
The results of experimental test of parametric array application for marine shallow water waveguide excitation by sweep frequency modulated signal are presented. Sweep modulated signal compression experimentally shown for single mode signal propagation in shallow water. Acoustical signal of 2 ms duration is generated in frequency band of 7 kHz–15 kHz by parametric array. This signal is transmitted in single lobe of 2° width along the path of 5.6 km long in water layer of 2.5–3 m depth. The directivity of the signal transmitted was constant in the whole frequency range. It was shown the single mode excitation of the shallow water waveguide takes place under this circumstance. Discussion of the efficiency parametric array application for shallow water marine sounding is presented as well. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
