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- Title
Experimental study of mode selection in shallow-water sea.
- Authors
Grinyuk, A.; Burdukovskaya, V.; Zverev, V.; Kravchenko, V.; Kovalenko, V.; Luchinin, A.; Malekhanov, A.; Trofimov, A.; Trusova, O.; Smirnov, I.; Stromkov, A.; Khil'ko, A.
- Abstract
The possibilities of matching low-frequency underwater sound pulses to the parameters of an oceanic waveguide are considered. The objective is to optimize the system of few-mode tomographic observation in a shallow-water sea. Experimental data are analyzed for two methods of selecting the low-frequency fewmode pulses propagating in a shallow-water sea. The first method excites probe pulses by vertically elongated arrays, with spatial filtering after vertical or horizontal arrays receive the pulses. The second method is based on exciting broadband signals with linear frequency modulation by a single transmitter. The selection of the few-mode signal is performed by time strobing the signals at the output of the matched filter after a horizontal array receives the pulses. The distance between the sound sources and receiving systems varied from 10 to 300 km.
- Subjects
SHALLOW water acoustics; WATER depth; WAVEGUIDES; UNDERWATER acoustics; ELECTRIC waves
- Publication
Acoustical Physics, 2012, Vol 57, Issue 3, p288
- ISSN
1063-7710
- Publication type
Article
- DOI
10.1134/S1063771012020054