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Proceedings Paper

Suitability of fractional moments for data from low-dynamics acquisition systems
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Paper Abstract

The distributions of intensity fluctuations generally found in atmospheric optical scintillation measurements are characterized by a large range of intensity values, I, whose probability level, even if low, is not negligible. The range of I-values with a significant probability depends on the experimental conditions and can go from zero to several hundred times the mean value, < I <, of the distribution in the case of strong scintillation. In principle, an acquisition system should have dynamics able to cover the whole significant range of measured intensities. Of course, this requirement is not limited to scintillation measurements and the application of low order fractional moments we present here can be employed every time we face a measured quantity with a "long tail" distribution.

Paper Details

Date Published: 19 July 1999
PDF: 2 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354921
Show Author Affiliations
Claudia Innocenti, INFM (Italy)
Anna Consortini, Univ. degli Studi di Firenze and INFM (Italy)


Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

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