Title :
Algorithm of Reflection Coefficient for Unbounded Media in Beam-Displacement Ray-Mode Theory
Author :
Zhang, Lin ; Da, Lianglong ; Zhou, Yanxia
Author_Institution :
Dept. of Navig. & Commun., Navy Submarine Acad., Qingdao, China
Abstract :
The beam-displacement ray-mode theory is a normal mode method for propagation modeling in common horizontally stratified shallow water. Computation of the reflection coefficient for unbounded media is the key of the theory. In this paper, on the basis of the WKBZ eigenfunction, a kind of algorithm for computing the reflection coefficient for unbounded media is proposed. And the algorithm is universal to any sound speed profile with complex surface layer. Numerical simulations show that the beam-displacement ray-mode theory results with this algorithm are in good agreement with the KRAKEN normal mode results, and computational speed of this algorithm excels that of the other methods.
Keywords :
eigenvalues and eigenfunctions; electromagnetic wave propagation; electromagnetic wave reflection; KRAKEN normal mode; WKBZ eigenfunction; beam-displacement ray-mode theory; horizontally stratified shallow water; propagation modeling; reflection coefficient; unbounded media; Acoustics; Computational modeling; Eigenvalues and eigenfunctions; Mathematical model; Media; Oceans; Reflection; normal mode; reflection coefficient; sound propagation; unbounded media;
Conference_Titel :
Intelligence Science and Information Engineering (ISIE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4577-0960-9
Electronic_ISBN :
978-0-7695-4480-9
DOI :
10.1109/ISIE.2011.56
