Experimental investigation of buried landmine detection using time division multiplexing of multibeam laser Doppler vibrometer channels

Richard Burgett; Vyacheslav Aranchuk; Ina Aranchuk

doi:10.1117/12.919481

10 May 2012 Experimental investigation of buried landmine detection using time division multiplexing of multibeam laser Doppler vibrometer channels

Richard Burgett, Vyacheslav Aranchuk, Ina Aranchuk

Author Affiliations +

Proceedings Volume 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII; 83570H (2012) https://doi.org/10.1117/12.919481
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Producing vibration images of buried landmines using a multi-beam laser Doppler vibrometer (MB-LDV) operating from a stationary platform have been accomplished in the past. Detection from a continuously moving platform can reduce the time of detection compared to stop-and-stare measurement. However, there is a speed limitation, imposed by the required spatial and frequency resolution. NCPA proposed a concept of time division multiplexing (TDM) of laser beams of a MB-LDV to overcome that speed limitation. The system, based on 16-beam MB-LDV, has been built and experimentally tested at an Army test facility. Vibration velocity profiles of buried mines have been obtained at different system speeds. Algorithms for speckle noise reduction in continuously moving MB-LDV signals have been developed and explored. The results of the current data collection, recent past data collection as well as the results of the effectiveness of speckle noise reduction techniques are presented.

Citation Download Citation

Richard Burgett, Vyacheslav Aranchuk, and Ina Aranchuk "Experimental investigation of buried landmine detection using time division multiplexing of multibeam laser Doppler vibrometer channels", Proc. SPIE 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII, 83570H (10 May 2012); https://doi.org/10.1117/12.919481

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