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Non-Plane-Wave Noise Source Localization in Very Shallow Water

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
70418
Program Year/Program:
2006 / STTR
Agency Tracking Number:
N045-011-0415
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
3 Phoenix, Inc.
14585 Avion Pwy Suite 200 Chantilly, VA 20151-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2006
Title: Non-Plane-Wave Noise Source Localization in Very Shallow Water
Agency / Branch: DOD / NAVY
Contract: N66604-06-C-1293
Award Amount: $899,953.00
 

Abstract:

Spatial processing for Navy arrays has been designed in nearly all cases based on the a horizontally propagating plane wave model, the underlying assumption being that energy arrives from far field targets as a superposition of free field traveling waves at frequencies determined by the target signature. It is well known that acoustic propagation is much more complex than the simple model due to boundary interactions (as evidenced by multi-path), sound velocity variability, and other more complicated effects. These effects are most prominent in shallow water and at low frequencies where surface and bottom interactions are prevalent. The Phase I research on this topic has derived an effective method of predicting the arrival structure of complicated multipath and applying a novel broadband statistical method for recombining the diverse acoustic paths. The Phase I effort derived the theoretical basis for the method and demonstrated its feasibility. The Phase II research will investigate the robustness of the method to environmental uncertainty, apply it to more complicated environments, and extend it to narrowband processing for target classification.

Principal Investigator:

Russell J. Jeffers
Principal
7037958574
russ.jeffers@3phoenix.com

Business Contact:

Joseph A. Liverman
Principal
5713319431
andy.liverman@3phoenix.com
Small Business Information at Submission:

3 PHOENIX, INC.
9607 Jomar Drive Fairfax, VA 22032

EIN/Tax ID: 550853142
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
GEORGE MASON UNIV.
Office of Sponsored Programs
4400 University Drive M/S 4C6
Fairfax, VA 22030
Contact: Ann T. McGuigan
Contact Phone: (703) 993-2298
RI Type: Nonprofit college or university