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Abstract

A method of classifying an electromagnetic-energy emitting source event as one of a first, second, and third class event includes registering an irradiance spectrum from the source event. The intensity of the energy emitted from the source event is measured within each of first, second and third energy sub-ranges and first, second and third relative-energy values are associated with, respectively, the first, second and third energy sub-ranges. A first class-eliminating determination is rendered by comparing to one another a first selected set of two of the relative-energy values, thereby yielding two remaining-candidate event classes. When necessary, a second class-eliminating determination renders the proper classification for the source event by comparing to one another a second selected set of relative-energy values including the relative-energy value not selected for inclusion in the first selected set of two relative-energy values and one of the previously selected relative-energy values. The energy-value comparisons are carried out with reference to modeled source-event irradiance data from which expected ratio behaviors among the selected energy sub-ranges are ascertainable relative particular event types at various ranges and under disparate atmospheric conditions.

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First Claim