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

Claudia Innocenti; Anna Consortini

doi:10.1117/12.354921

19 July 1999 Suitability of fractional moments for data from low-dynamics acquisition systems

Claudia Innocenti, Anna Consortini

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354921
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

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.

Citation Download Citation

Claudia Innocenti and Anna Consortini "Suitability of fractional moments for data from low-dynamics acquisition systems", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.354921

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