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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 13, Iss. 12 — Dec. 1, 1996
  • pp: 2453–2460

Characterization of atmospheric turbulence phase statistics using wave-front slope measurements

Eric E. Silbaugh, Byron M. Welsh, and Michael C. Roggemann  »View Author Affiliations


JOSA A, Vol. 13, Issue 12, pp. 2453-2460 (1996)
http://dx.doi.org/10.1364/JOSAA.13.002453


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Abstract

Turbulence has long been recognized as one of the most significant factors limiting the performance of optical systems operating in the presence of atmosphere. Atmospheric turbulence over vertical paths has been well characterized, both theoretically and experimentally. Much less is known about turbulence over long, horizontal paths. Perturbations of the wave-front phase can be measured with a Hartmann wave-front sensor (H-WFS). One can use these measurements to characterize atmospheric turbulence directly. Theoretical expressions for the slope structure function of the H-WFS measurements are derived and evaluated with the use of numerical quadrature. By concentrating on the slope structure function, we avoid the phase reconstruction step and use the slope measurements in a more direct fashion. The theoretical slope structure function is compared with estimated slope structure functions computed from H-WFS measurements collected in a series of experiments conducted by researchers at the U.S. Air Force’s Phillips Laboratory. These experiments involved H-WFS measurements over high-altitude (airborne) horizontal paths 20–200 km in length.

© 1996 Optical Society of America

History
Original Manuscript: May 17, 1996
Revised Manuscript: July 30, 1996
Manuscript Accepted: July 3, 1996
Published: December 1, 1996

Citation
Eric E. Silbaugh, Michael C. Roggemann, and Byron M. Welsh, "Characterization of atmospheric turbulence phase statistics using wave-front slope measurements," J. Opt. Soc. Am. A 13, 2453-2460 (1996)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-13-12-2453

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