DETECTION AND LOCALIZATION OF VAPOR-EMITTING SOURCES

We develop methods for detecting and localizing vapor-emitting sources using chemical sensor arrays. Potential applications of these methods include detection of explosives or drugs, sensing leakage of hazardou s chemicals or pollution, and studying the environment. We describe th e pertinent physical models, develop estimation and detection algorith ms, and derive performance bounds. The algorithms are tested numerical ly and compared with the theoretical pounds.