RAYLAB - a ray tracing program in underwater acoustics


  • Abrahamsson Leif

Publish date: 2003-01-01

Report number: FOI-R--1047--SE

Pages: 35

Written in: English


RAYLAB is a ray tracing program tailor-made for inversion analysis of experimental data to determine geoacoustic parameters of a multilayered seabottom. The most important features are the computation of sub-bottom eigenrays and the partition of transmission loss into factors due to geometrical spread, absorption and reflection losses at sediment interfaces. Fast computational speed has been an important aspect in the numerical treatment, since it is a critical factor of inversion schemes for sediment classification in real time.