Phase Structure Function Measurements With Multiple Apertures

Frank D. Eaton; William A. Peterson; John R. Hines; James J. Drexler; Arthur H. Waldie; David B. Soules; John A. Qualtrough

doi:10.1117/12.960874

11 October 1989 Phase Structure Function Measurements With Multiple Apertures

Frank D. Eaton, William A. Peterson, John R. Hines, James J. Drexler, Arthur H. Waldie, David B. Soules, John A. Qualtrough

Author Affiliations +

Proceedings Volume 1115, Propagation Engineering; (1989) https://doi.org/10.1117/12.960874
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

A newly-developed Atmospheric Turbulence Measurement and Observation System (ATMOS) was equipped with multiple apertures, allowing the phase structure function to be determined experimentally. Data was obtained with the ATMOS under two conditions: (a) over a horizontal path with a laser source, and (b) from near-vertical viewing of stellar sources. This data was compared to measurements of the refractive index structure parameter (Cn2) obtained from scintillometers, spatially separated temperature probes, and anemometers. The existence of the Kolmogorov spectrum of turbulence during the measurement period will be discussed as well as the relevance of the results on the transverse coherence length, r0. The optical arrangement, as well as data collection and analysis methods, are also outlined.

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Frank D. Eaton, William A. Peterson, John R. Hines, James J. Drexler, Arthur H. Waldie, David B. Soules, and John A. Qualtrough "Phase Structure Function Measurements With Multiple Apertures", Proc. SPIE 1115, Propagation Engineering, (11 October 1989); https://doi.org/10.1117/12.960874

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