Forward Looking Mine Detection with Laser Doppler Vibrometers

Award Information
Agency: Department of Defense
Branch: Army
Contract: W909MY-04-C-0004
Agency Tracking Number: A012-0531
Amount: $729,999.00
Phase: Phase II
Program: SBIR
Awards Year: 2003
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2572 White Road, Irvine, CA, 92614
DUNS: 188465819
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Amit Lal
 Senior Scientist
 (949) 553-0688
Business Contact
 Cecil Hess
Title: President
Phone: (949) 553-0688
Research Institution
This Phase II proposal is for developing a whole-field digital laser vibrometer (WDV) system capable of detecting buried landmines from a moving platform. Experiments have shown the feasibility of this technique to measure ground surface profiles aboveburied objects. We anticipate that the proposed system will be capable of detecting the presence of landmines at a rate of 1 m2 in tens of milliseconds. Furthermore, the proposed WDV would not be affected by the Doppler shift due to the platform motion. Adual pulse laser system would allow optimizing the signal as a function of acoustic excitation frequency. An innovative speckle reposition strategy would allow movement of the measurement platform at high speeds while still obtaining measurements withprecise interferometric resolution. To date, laser-acoustic systems have been successfully demonstrated with a stop and scan technique and mainly in a downward-looking configuration. The proposed WDV would help to overcome both of these limitationsenabling a practical system for either direct or confirmatory measurements. The Phase II work will consist of experimental work, design, and construction of a prototype system and fieldwork to demonstrate the developed system in a landmine field.Theproposed system will be capable of measuring surface vibration from a platform moving at several m/s. This system, upon development, will provide inspectors with a powerful tool for safely detecting the presence of landmines. These concepts also have wideapplication in the area of non-destructive inspection for the automotive, aerospace, machinery, and construction industries.

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

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