Ambient noise modeling in ODIN

ODIN is an underwater engagement simulation tool that models interacting entities (such as ships and UUVs) in underwater environments where the entities have tactics that define their behavior over time. An ODIN user has great flexibility in defining a wide range of entity and environmental parameters. ODIN can model ambient noise to predict in beam ambient noise. It undertakes these predictions using its in built ray trace model along with the Kuperman Ferla, Ainslie and APLUW surface noise source models. The presentation will show ODIN predictions of omni noise levels and array response to noise in range-dependent environments using the three source level equations. These are compared with some published papers on isotropic ambient noise data. There is also a comparison with the CANARY Ambient Noise Model that was developed in the 1990s.