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Standoff detection and classifcation procedure for bioorganic compounds by hyperspectral laser-induced fluorescence

Fischbach, Thomas and Duschek, Frank and Hausmann, Anita and Pargmann, Carsten and Aleksejev, Valeri and Poryvkina, Larisa and Sobolev, Innokenti and Babichenko, Sergey and Handke, Jürgen (2015) Standoff detection and classifcation procedure for bioorganic compounds by hyperspectral laser-induced fluorescence. In: Proceedings of SPIE - The International Society for Optical Engineering, XVI (9455), p. 945508. SPIE. SPIE.DSS Defense + Security, 20.-24. Apr. 2015, Baltimore, Maryland, United States. DOI: [10.1117/12.2176334]

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Official URL: http://dx.doi.org/10.1117/12.2176334

Abstract

The high and still increasing number of attacks by hazardous bioorganic materials makes enormous demands on their detection. A very high detection sensitivity and differentiability are essential, as well as a rapid identification with low false alarm rates. One single technology can hardly achieve this. Point sensors can collect and identify materials, but finding an appropriate position is time consuming and involves several risks. Laser based standoff detection, however, can immediately provide information on propagation and compound type of a released hazardous material. The coupling of both methods may illustrate a solution to optimize the acquisition and detection of hazardous substances. At DLR Lampoldshausen, bioorganic substances are measured, based on laser induced fluorescence (LIF), and subsequently classified. In this work, a procedure is presented, which utilizes lots of information (time-dependent spectral data, local information) and predicts the presence of hazardous substances by statistical data analysis. For that purpose, studies are carried out on a free transmission range at a distance of 22 m at two different excitation wavelengths alternating between 280 nm and 355 nm. Time-dependent fluorescence spectra are recorded by a gated intensified CCD camera (iCCD). An automated signal processing allows fast and deterministic data collection and a direct subsequent classification of the detected substances. The variation of the substance parameters (physical state, concentration) is included within this method.

Item URL in elib:https://elib.dlr.de/96589/
Document Type:Conference or Workshop Item (Speech)
Title:Standoff detection and classifcation procedure for bioorganic compounds by hyperspectral laser-induced fluorescence
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fischbach, Thomasthomas.fischbach (at) dlr.deUNSPECIFIED
Duschek, FrankFrank.Duschek (at) dlr.deUNSPECIFIED
Hausmann, Anitaanita.hausmann (at) dlr.deUNSPECIFIED
Pargmann, Carstencarsten.pargmann (at) dlr.deUNSPECIFIED
Aleksejev, ValeriLDI InnovationUNSPECIFIED
Poryvkina, LarisaLDI InnovationUNSPECIFIED
Sobolev, InnokentiLDI InnovationUNSPECIFIED
Babichenko, SergeyLDI InnovationUNSPECIFIED
Handke, Jürgenjuergen.handke (at) dlr.deUNSPECIFIED
Date:22 May 2015
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:XVI
DOI :[10.1117/12.2176334]
Page Range:p. 945508
Editors:
EditorsEmail
Fountain, Augustus W.Edgewood Chemical Biological Center
Publisher:SPIE
Series Name:Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing
Status:Published
Keywords:Biological sensing and sensors; Fluorescence, laser-induced; Spectroscopy, ultraviolet; Standoff detection; Hazardous material detection; Classification procedure
Event Title:SPIE.DSS Defense + Security
Event Location:Baltimore, Maryland, United States
Event Type:international Conference
Event Dates:20.-24. Apr. 2015
Organizer:SPIE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Fischbach, Thomas
Deposited On:09 Jul 2015 10:51
Last Modified:31 Jul 2019 19:53

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