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Compressive Sensing Flash LADAR for Underwater Mine Imaging

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-21-C-0078
Agency Tracking Number: B142-001-0144a
Amount: $1,599,245.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: MDA14-001
Solicitation Number: 14.2
Solicitation Year: 2014
Award Year: 2021
Award Start Date (Proposal Award Date): 2020-11-10
Award End Date (Contract End Date): 2023-10-06
Small Business Information
20 New England Business Center
Andover, MA 01810-1111
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Julia Dupuis
 (978) 738-8273
Business Contact
 B. David Green
Phone: (978) 689-0003
Research Institution

Physical Sciences, Inc. will develop an underwater mine imaging and detection capability based on a novel flash LADAR sensor employing compressive sensing (CS) and a single pixel architecture.  The approach makes dual use of orbital angular momentum light as the projected measurement basis for CS and in the form of a vortex imaging receiver resulting in spatial separation between ballistic and scattered photons.  These attributes will preserve spatial frequencies of mine-like targets and retrieval of signal photons from the target return that are up to two orders of magnitude below the background scatter level.  The sensor is projected to achieve 10 cm range resolution out to 8 m for clear water (c = 0.1 m-1) and out to 2 m for highly turbid water (c = 2 m-1) with a 128×128 spatial format (256×256 with pan sharpening) over a 30º field of view.  The capability is coupled with fast CS reconstruction engine using split Bregman iteration followed by an automated target recognition (ATR) algorithm based on a convolution neural network (CNN).   A prototype CS flash LADAR and real time CS and CNN-based ATR algorithms will be developed and demonstrated.

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

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