Advanced Algorithms For A Combined Chem-Bio Standoff Sensor

The program addresses algorithm development in critical areas that have received little or no attention in the past, including mixtures of chemical vapors, single and mixed chemical aerosols, mixtures of bio aerosols, and mixtures of chemical vapors. New approaches based on parallel extraction of material spectral dependence of the material in parallel with its path-integrated concentration and nonnegative matrix factorization originally used for unmixing hyperspectral data will be attempted. The algorithms will combine orthogonal data sets for DIAL and DISC in the likely case of mixtures of chemical vapors and aerosols. Methods to process DIAL and DISC data collected simultaneously to achieve rapid realtime output will be investigated and analysis will be undertaken to show the specific sensor changes required to take full advantage of the new algorithms.