Email this article Acoustic Transmission Loss in Shallow-Water Waveguides with an Sloping Bottom
- Authors: Lunkov A.A.1,2, Shermeneva M.A.1,3
-
Affiliations:
- Prokhorov General Physics Institute of the Russian Academy of Sciences
- Bauman Moscow State Technical University
- National Research Nuclear University MEPhI
- Issue: Vol 65, No 5 (2019)
- Pages: 527-536
- Section: Ocean Acoustics. Hydroacoustics
- URL: https://journal-vniispk.ru/1063-7710/article/view/186956
- DOI: https://doi.org/10.1134/S1063771019050129
- ID: 186956
Cite item
Open Access
Access granted
Subscription Access
Abstract
The paper analytically demonstrates that for a shallow-water waveguide, there can be found an “optimal” bottom profile for which the energy losses with range will be the lowest, provided the initial and final depths are fixed and the depth increases monotonically. The analytical estimates given by the normal mode method are confirmed by a numerical experiment using a wide-angle parabolic equation. For the optimal profile, the features of the sound field behavior, its intensity with range from the source, and mode coupling are investigated.
About the authors
A. A. Lunkov
Prokhorov General Physics Institute of the Russian Academy of Sciences; Bauman Moscow State Technical University
Email: shermeneva@mail.ru
Russian Federation, Moscow, 119991; Moscow, 105005
M. A. Shermeneva
Prokhorov General Physics Institute of the Russian Academy of Sciences; National Research Nuclear University MEPhI
Author for correspondence.
Email: shermeneva@mail.ru
Russian Federation, Moscow, 119991; Moscow, 115409
Supplementary files
