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Ambient Noise Interferometry for Passive Characterization of Dynamic Environments

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-12-C-0104
Agency Tracking Number: N10A-004-0274
Amount: $490,554.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: N10A-T004
Solicitation Number: 2010.A
Solicitation Year: 2010
Award Year: 2012
Award Start Date (Proposal Award Date): 2011-12-08
Award End Date (Contract End Date): N/A
Small Business Information
54 Old Hampton Lane
Hampton, VA -
United States
DUNS: 825732993
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Oleg Godin
 Senior Research Scientist
 (303) 497-6558
Business Contact
 Susan Hughes
Title: Directors, Contracts
Phone: (757) 722-5565
Research Institution
 The University of Colorado
 Randall D PhD
Office of Contracts and Grants 572 UCB 3100 Marine St, Rm 481
Boulder, CO 80309-
United States

 (303) 492-2695
 Nonprofit College or University

Non-invasive, stealthy nature of passive remote sensing combined with its low cost make passive techniques a promising supplement or replacement of traditional active remote sensing techniques. Coherent processing of diffuse wave fields has a proven potential for remote sensing of stationary environments. The proposed research extends noise interferometry to characterization of dynamic environments. We will develop"acoustic daylight"and"radio wave daylight"techniques for retrieval of information about targets and their surroundings from the ambient acoustic noise and the background radio waves; and determine which environmental parameters and types of targets can be effectively monitored through ambient noise interferometry. The interferometric approach will be extended to ambient acoustic noise in the ocean, infrasonic noise in the atmosphere, and to electromagnetic ambient noise in the atmosphere. Through optimization of the data acquisition geometry, frequency band, and data processing algorithms, we will improve accuracy of passive travel time measurements and sensitivity to weak, transient environmental perturbations. In case of positive results of Phase II efforts, specialized passive acoustic and/or HF or microwave electromagnetic sensors and systems will be designed during Phase III for passive remote sensing as well as detection and localization of silent targets in the ocean and atmosphere.

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

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