Title
Measurements and Simulations of Acoustic Propagation Loss in the Baltic Sea
Author
TNO Defensie en Veiligheid
Gerdes, F.
Hofmann, H-G.
Jans, W.
Künzel, S.
Nissen, I.
Dol, H.S.
Publication year
2009
Abstract
Between 2002 and 2007 FWG has carried out four sea trials at different locations of the western Baltic Sea. These were BAROC 2002 near Landsort and Gotland and UCAC 2006, VOICE 2006 and UCAC 2007 east of Bornholm. Altogether quite a large number of runs with different configurations of source and receiver and different environmental conditions were analysed. Important processing outputs are transmission loss (TL) and channel impulse response as function of acoustic propagation distance. The data add to FWG's existing transmission loss data base which is largely based on experiments performed before 1990. Improvements of the experimental equipment as well as of the processing techniques allowed us to probe the acoustic channel more thoroughly than previously possible. This provides new opportunities to validate but also to pinpoint shortcomings of existing sound propagation models. In particular, our focus is on a possible improvement of the stochastic ray tracer SIPSI / MOCASSIN developed by FWG. In this paper we give an overview of the sea trials and compare measured and modelled transmission loss for a few situations
Subject
Transmission loss
Simulation
Propagation loss
Underwater acoustics
Sound propagation
modelling
To reference this document use:
http://resolver.tudelft.nl/uuid:0a4c8cb4-7bca-48f2-8528-e1d40c3cce61
TNO identifier
462581
Source
Proceedings 3rd International Conference and Exhibition on Underwater Acoustic Measurements - Technologies & Results - UAM 2009, 21-26 June 2009, Nafplion, Greece
Document type
conference paper