Coherent Seismoacoustic Sounding of a Model of the Layered Sea Bottom Under Laboratory Conditions

• Published in: Radiophysics and quantum electronics Vol. 60; no. 10; pp. 824 - 835
• Main Authors: Uvarov, V. V., Kalinina, V. I., Khil’ko, A. A., Kurin, V. V., Khil’ko, A. I.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.03.2018; Springer; Springer Nature B.V
• Subjects: Acoustics; Algorithms; Analysis; Astronomy; Astrophysics and Astroparticles; Elastic layers; Forming; Hadrons; Half spaces; Heavy Ions; Laboratories; Lasers; Mathematical and Computational Physics; Mathematical models; Nuclear Physics; Observations and Techniques; Optical Devices; Optics; Parameter estimation; Photonics; Physics; Physics and Astronomy; Quantum Optics; Sounding; Theoretical
• ISSN: 0033-8443; 1573-9120
• DOI: 10.1007/s11141-018-9850-2

The algorithms developed for reconstructing the geoacoustic parameters of the bottom layers during their coherent sounding are experimentally verified under laboratory conditions. The algorithms use the parametric models of forming the signals reflected from the layered half-space. To solve the problem, an experimental setup for measuring the parameters of the sounding acoustic pulses reflected from a set of elastic layers placed in a water tank is developed at the Acoustics Division of N. I. Lobachevsky State University of Nizhny Novgorod. The devices for forming, radiating, and receiving the acoustic pulses reflected from the layered system are developed. The structure of reverberation interference in the measuring tank is studied. The parameters of the layered-bottom model are experimentally estimated for the optimized parameters of the sounding signals.