Real-time determination and suppression of bio-aerosol constituents

Philip D. Henshaw; Pierre C. Trepagnier

doi:10.1117/12.684756

25 October 2006 Real-time determination and suppression of bio-aerosol constituents

Proceedings Volume 6378, Chemical and Biological Sensors for Industrial and Environmental Monitoring II; 637814 (2006) https://doi.org/10.1117/12.684756
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

We describe algorithm development for a trigger system for bio-aerosol detection using bulk collection of aerosols. Two key problems inherent to any system which collects or probes a volume of air are presented - the "mixture" problem and the "spike" problem. We describe a background suppression and detection algorithm and show why knowledge of background endmembers is important. We present an endmember selection algorithm and show examples. Integrating these two algorithms solves both the mixture and spike problems and has applications to both bio-aerosol point detectors which collect samples from a volume of air, and to bio-aerosol stand-off detectors which probe a column of air.

Citation Download Citation

Philip D. Henshaw and Pierre C. Trepagnier "Real-time determination and suppression of bio-aerosol constituents", Proc. SPIE 6378, Chemical and Biological Sensors for Industrial and Environmental Monitoring II, 637814 (25 October 2006); https://doi.org/10.1117/12.684756

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