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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 1, Iss. 11 — Nov. 24, 1997
  • pp: 312–323

Active imaging through cirrus clouds

B. T. Landesman, P. Kindilien, R. E. Pierson, C. L. Matson, and D. Mosley  »View Author Affiliations

Optics Express, Vol. 1, Issue 11, pp. 312-323 (1997)

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The presence of clouds of ice particles in the uplink and downlink path of an illumination beam can severely impede the performance of an active imaging system. Depending on the optical depth of the cloud, i.e., its density and depth, the beam can be completely scattered and extinguished, or the beam can pass through the cloud with some fraction attenuated, scattered, and depolarized. In particular, subvisual cirrus clouds, i.e., high, thin cirrus clouds that cannot be observed from the ground, can affect the properties and alignment of both uplink and downlink beams. This paper discusses the potential for active imaging in the presence of cirrus clouds. We document field data results from an active imaging experiment conducted several years ago, which the authors believe to show the effects of cirrus clouds on an active imaging system. To verify these conclusions, we include the results of a simulation of the interaction of a coherent illumination scheme with a cirrus cloud.

© Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(100.3020) Image processing : Image reconstruction-restoration
(110.6150) Imaging systems : Speckle imaging
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors

ToC Category:
Focus Issue: Signal collection and recovery

Original Manuscript: September 17, 1997
Published: November 24, 1997

Barbara Landesman, P. Kindilien, R. Pierson, Charles Matson, and D. Mosley, "Active Imaging through Cirrus Clouds," Opt. Express 1, 312-323 (1997)

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