Resonances of Acoustic Waves Interacting with an Elastic Seabed

Abstract

Journal of Computational AcousticsVol. 09, No. 03, pp. 1079-1093 (2001) ICTCA'99 PapersNo AccessRESONANCES OF ACOUSTIC WAVES INTERACTING WITH AN ELASTIC SEABEDMARGARETE S. FOKINA and VLADIMIR N. FOKINMARGARETE S. FOKINAInstitute of Applied Physics, Russian Academy of Sciences, 46, Ulyanov Str., Nizhny Novgorod, 603950, Russia Search for more papers by this author and VLADIMIR N. FOKINInstitute of Applied Physics, Russian Academy of Sciences, 46, Ulyanov Str., Nizhny Novgorod, 603695, Russia Search for more papers by this author https://doi.org/10.1142/S0218396X01001352Cited by:5 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractAn exact expression for the reflection coefficient is obtained with the Thomson–Haskell technique for the geoacoustical model of an ocean bottom consisting of an elastic homogeneous sediment layer overlying an elastic half-space. Characteristic equations for explicit determination of the position of each individual resonance contribution to the reflection coefficient are derived. Analytical expressions for the angular and frequency resonance positions are found. The resonance expression for the reflection coefficient is written in the form of a sum of resonance terms. Comparison between resonance theory and exact calculations for the elastic layer covering the elastic half-space is presented. The results of resonance formalism show excellent agreement with exact theory in all the cases.Presented at ICTCA'99, the 4th International Conference on Theoretical and Computational Acoustics, May 1999, Trieste, Italy. FiguresReferencesRelatedDetailsCited By 5An Acoustic Hyperlens with Negative Direction Based on Double Split Hollow SphereJung Sik Choi and Gil Ho Yoon17 June 2019 | Journal of Theoretical and Computational Acoustics, Vol. 27, No. 02Analytical solutions for the resonance response of Goupillaud-type elastic media using z -transform methodsG.A. Gazonas and A.P. Velo1 Jan 2012 | Wave Motion, Vol. 49, No. 1Effect of ground variability on acoustic-to-seismic transfer function and false alarms in landmine detectionVladimir N. Fokin, Margarita S. Fokina, James M. Sabatier and Zhiqu Lu1 Aug 2006 | The Journal of the Acoustical Society of America, Vol. 120, No. 2Effect of variability of soil physical properties on clutter and false alarms in land mine detectionVladimir N. Fokin, Margarita S. Fokina, James M. Sabatier, Ning Xiang and Wheeler B. Howard3 August 2004 | Radio Science, Vol. 39, No. 4Estimation of sea bottom parameters from the angle-frequency resonances of the reflection coefficientV. N. Fokin and M. S. Fokina1 Sep 2003 | Acoustical Physics, Vol. 49, No. 5 Recommended Vol. 09, No. 03 Metrics History Received 8 July 1999 Revised 7 September 2000 PDF download