Multispectral LIF-Based Standoff Detection System for the Classification of CBE Hazards by Spectral and Temporal Features

• DOI: 10.3390/s20092524
• Publication Date: 2020-04-29T17:23:45Z
• Authors: Lea Fellner; Marian Kraus; Florian Gebert; Arne Walter; Frank Duschek
• Keywords: Data set; Spectral bands

Laser-induced fluorescence (LIF) is a well-established technique for monitoring chemical processes and the standoff detection of biological substances because its simple technical implementation high sensitivity. Frequently, LIF spectra from large molecules bio-agents are only slightly structured gain deeper information, such as classification, let alone identification, might become challenging. Improving technology by recording spectral additionally time-resolved emission, significant information can be achieved. This work presents results based system an analysis influence data on classification accuracy. A multi-wavelength sub-nanosecond laser source used to acquire distance 3.5 m. The set contains seven different bacterial species six types oil. Classification performed with decision tree algorithm separately data, combination both. first findings show valuable contribution investigated agents their level. Temporal have been proven partly complementary. accuracy increased 86% more than 92%.