Path-loss prediction based on FDTD method and normal mode theory for underwater acoustic channel

Yongjune Kim, Il Suek Koh, Yongshik Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper proposes a new normal mode algorithm based on Finite-Difference Time-Domain (FDTD) scheme. The proposed method can efficiently predict the wideband path-loss of the underwater acoustic channel through only one simulation, while the conventional normal mode theory based on frequency-domain analysis should be repeated many times over wideband frequency points. To validate the proposed method, a 40% bandwidth at 20 Hz has been simulated using a Gaussian pulse excitation and compared with the known normal mode solution, the Kraken, and the ray theory solution, the Bellhop.

Original languageEnglish
Title of host publicationOCEANS'11 - MTS/IEEE Kona, Program Book
Publication statusPublished - 2011 Dec 1
EventMTS/IEEE Kona Conference, OCEANS'11 - Kona, HI, United States
Duration: 2011 Sep 192011 Sep 22

Other

OtherMTS/IEEE Kona Conference, OCEANS'11
CountryUnited States
CityKona, HI
Period11/9/1911/9/22

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Ocean Engineering

Cite this

Kim, Y., Koh, I. S., & Lee, Y. (2011). Path-loss prediction based on FDTD method and normal mode theory for underwater acoustic channel. In OCEANS'11 - MTS/IEEE Kona, Program Book [6107197]