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J Spacecr Rockets. 1997 Jul-Aug;34(4):522-32.

Air-quality monitoring and detection of air contamination in an enclosed environment.

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University of Utah, Salt Lake City 84112, USA.
U Rochester, NY
U CO, Boulder


We report on the development of an air-quality monitoring and early detection system for an enclosed environment with specific emphasis on manned spacecraft. The proposed monitoring approach is based on a distributed parameter model of contaminant dispersion and real-time contaminant concentration measurements. Kalman filtering is identified as a suitable method for generating on-line estimation of the spatial contamination profile, and an implicit Kalman filtering algorithm is shown to be preferable for rear-time implementation. The identification of the contaminant concentration profile allows for a straightforward solution of the early detection of an air contamination event and provides information that enables potential automatic diagnosis of an unknown contamination source.

[Indexed for MEDLINE]

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