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3D Acoustic Model for Geometrically Constrained Environments

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-16-P-3038
Agency Tracking Number: N16A-018-0182
Amount: $80,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N16A-T018
Solicitation Number: 2016.0
Solicitation Year: 2016
Award Year: 2016
Award Start Date (Proposal Award Date): 2016-07-11
Award End Date (Contract End Date): 2017-05-10
Small Business Information
44 Garfield Ave. # 2
Woburn, MA 01801
United States
DUNS: 053005848
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr. Irena Lucifredi
 (617) 286-2732
Business Contact
 Irena Lucifredi
Phone: (617) 286-2732
Research Institution
 Boston University
 Ms. Maureen Rodgers
Office of Sponsored Programs 25 Buick Street
Boston, MA 02215
United States

 (617) 353-4365
 Nonprofit College or University

This effort is focused on establishing an important capability of providing a comprehensive, advanced model of the three-dimensional acoustic field, including propagation, scattering, and reverberation in complex and dynamic environments. This new 3D acoustic model would feed the Navys sonar performance estimation tool with a purpose of addressing the optimal placement of sensors in complicated environments for tasks such as establishing underwater communication links or harbor surveillance. The focus of this proposal is further development of the already existing SOFAR Acoustics virtual source scattering and propagation model for predicting three-dimensional acoustic field parameters in environments characterized by complex geometries with variable boundary and propagation conditions. This tool will take into account all of the physically significant mechanism naturally occurring in this scenario including propagation, multiple-scattering, and reverberation in a highly constrained harbor environment. The approach provides a numerically efficient, broad-band model that can take into account closed boundary 3D objects or targets located in the water-column and it is therefore well suited to describe the scattering effects of blockages such as deep draft vessels and mooring dolphins. The acoustic model will be assessed for use in sonar performance estimation tools to address the optimal placement of sensors in constrained environments.

* Information listed above is at the time of submission. *

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