Technique for Spectrally Resolving Composite Radiation Sources

R. Tippets; R. Baldwin

doi:10.1117/12.959798

21 November 1980 Technique for Spectrally Resolving Composite Radiation Sources

R. Tippets, R. Baldwin

Proceedings Volume 0264, Applications of Digital Image Processing to Astronomy; (1980) https://doi.org/10.1117/12.959798
Event: 1981 Los Angeles Technical Symposium, 1980, Los Angeles, United States

Abstract

A technique is described for mathematically extracting information regarding the radiation characteristics of the constituents of an optically unresolvable composite radiation source made up of a finite number of individual radiators. The radiation characteristics of the individual sources are assumed to be known. This method requires multispectral band measurements of the composite signatures. The algorithm determines the number of each kind of radiator contributing to the signature. The number and types of radiators chosen as models must represent the range of radiators that can be expected to be present in the composite source. This method has been implemented on a computer and has been applied to the analysis of a computer-simulated galaxy in terms of its stellar population and to the analysis of a simulated multiple star system in terms of the number and kinds of stars present. The theoretical basis of this technique is outlined and the results of numerical experiments discussed. The effects of corrupting the signature with white noise to simulate random measurement errors are also discussed.

Citation Download Citation

R. Tippets and R. Baldwin "Technique for Spectrally Resolving Composite Radiation Sources", Proc. SPIE 0264, Applications of Digital Image Processing to Astronomy, (21 November 1980); https://doi.org/10.1117/12.959798

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