Performance assessment of the LYBIN - 2.0 propagation-loss model

Abstract

A new acoustic model LYBIN has been proposed for inclusion in the AESS model set. In order to determine this model's prediction accuracy and computational efficiency, SACLANTCEN was tasked to test LYBIN on exactly the same set of propagation problems used earlier for validating the current set of AESS models (ASTRAL, MOCASSIN, PE, PROLOS, RAYMODE, SUPERSNAP). The general conclusion of this test is that the range-dependent ray-trace model LYBIN, developed by the Norwegian Navy, is indeed a valid alternative to existing propagation models in the AESS. The LYBIN model has a prediction accuracy similar to the GRAB reference model but is considerably faster.