Biological aerosol detection with combined passive-active infrared measurements

Agustin I. Ifarraguerri; Richard G. Vanderbeek; Avishai Ben-David

doi:10.1117/12.578838

14 December 2004 Biological aerosol detection with combined passive-active infrared measurements

Agustin I. Ifarraguerri, Richard G. Vanderbeek, Avishai Ben-David

Proceedings Volume 5584, Chemical and Biological Standoff Detection II; (2004) https://doi.org/10.1117/12.578838
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

A data collection experiment was performed in November of 2003 to measure aerosol signatures using multiple sensors, all operating in the long-wave infrared. The purpose of this data collection experiment was to determine whether combining passive hyperspectral and LIDAR measurements can substantially improve biological aerosol detection performance. Controlled releases of dry aerosols, including road dust, egg albumin and two strains of Bacillus Subtilis var. Niger (BG) spores were performed using the ECBC/ARTEMIS open-path aerosol test chamber located in the Edgewood Area of Aberdeen Proving Grounds, MD. The chamber provides a ~ 20' path without optical windows. Ground truth devices included 3 aerodynamic particle sizers, an optical particle size spectrometer, 6 nephelometers and a high-volume particle sampler. Two sensors were used to make measurements during the test: the AIRIS long-wave infrared imaging spectrometer and the FAL CO2 LIDAR. The AIRIS and FAL data sets were analyzed for detection performance relative to the ground truth. In this paper we present experimental results from the individual sensors as well as results from passive-active sensor fusion. The sensor performance is presented in the form of receiver operating characteristic curves.

Citation Download Citation

Agustin I. Ifarraguerri, Richard G. Vanderbeek, and Avishai Ben-David "Biological aerosol detection with combined passive-active infrared measurements", Proc. SPIE 5584, Chemical and Biological Standoff Detection II, (14 December 2004); https://doi.org/10.1117/12.578838

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