A higher-order tangent linear parabolic-equation solution of three-dimensional sound propagation.
A higher-order square-root operator splitting algorithm is employed to derive a tangent linear solution for the three-dimensional parabolic wave equation due to small variations of the sound speed in the medium. The solution shown in this paper unifies other solutions obtained from less accurate approximations. Examples of three-dimensional acoustic ducts are presented to demonstrate the accuracy of the solution. Future work on the applications of associated adjoint models for acoustic inversions is proposed and discussed.
Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA. ytlin@whoi.edu
Ying-Tsong
YT
Lin
D000162:Acoustics; D000465:Algorithms; D003198:Computer Simulation; D005583:Fourier Analysis; D016014:Linear Models; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D011312:Pressure; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors