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Performant Multispectral LIF-based Standoff Detection System with Spectral and Temporal Features for the Classification of CBE Hazards

Duschek, Frank and Fellner, Lea and Gebert, Florian and Kraus, Marian (2019) Performant Multispectral LIF-based Standoff Detection System with Spectral and Temporal Features for the Classification of CBE Hazards. Applied Optics. Optical Society of America. ISSN 1559-128X (Submitted)

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Abstract

Because of its high sensitivity, laser-induced fluorescence (LIF) is a mature and well known technique for the detection of substances and for monitoring chemical processes. Compared to different methods like Raman spectroscopy, an identification is often not possible with LIF, only, and the classification of CBE hazards is commonly not best performing. Improving the technology by recording spectral and in addition temporal fluorescence emission a significant gain of information can be achieved. A detection system based on a multi-wavelength sub-nanosecond laser source is used to acquire spectral and time-resolved data from a standoff distance of 3.5 m. The dataset contains seven different bacterial species (Bacillus atrophaeus, Bacillus thuringiensis, Burkholderia fungorum, Burkholderia pyrrocinia, Micrococcus luteus, Oligella urethralis, Yersinia aldovae) and six types of oil. The data are analyzed by means of machine learning algorithms. First findings show a valuable contribution of time-resolved fluorescence data to the classification of the investigated chemicals and biological agents to their species level with an accuracy of more than 92 %.

Item URL in elib:https://elib.dlr.de/122399/
Document Type:Article
Title:Performant Multispectral LIF-based Standoff Detection System with Spectral and Temporal Features for the Classification of CBE Hazards
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Duschek, FrankFrank.Duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Fellner, Lealea.fellner (at) dlr.dehttps://orcid.org/0000-0002-1359-0260
Gebert, Florianflorian.gebert (at) dlr.deUNSPECIFIED
Kraus, MarianMarian.Kraus (at) dlr.dehttps://orcid.org/0000-0002-5385-9420
Date:2019
Journal or Publication Title:Applied Optics
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Editors:
EditorsEmail
UNSPECIFIEDOSA
Publisher:Optical Society of America
Series Name:Feature issue to Laser Applications to Chemical, Security and Environmental Analysis (LACSEA)
ISSN:1559-128X
Status:Submitted
Keywords:laser-induced fluorescence, standoff detection, biological hazards, classification, CBE
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
Institute of Technical Physics
Deposited By: Kraus, Marian
Deposited On:12 Nov 2018 10:22
Last Modified:23 Feb 2019 00:23

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