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Proceedings Paper

Measurements of atmospheric turbulence with an x-band radar: correlation with angle-of-arrival results
Author(s): E. Jeff Holder; James Clayton Kerce; Ronald A. Smith; Mark Shipman; Robert W. McMillan; James K. Williams
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Paper Abstract

We report on measurements of the index of refraction structure parameter Cn2 using an X-band interferometric radar operating over a 3.5 km path in Southern California. These measurements were made by observing signal fluctuations and relating them to the structure parameter. Simultaneous measurements of temperature, atmospheric pressure, and humidity were made at the end points of the range. Values of Cn2 ranging from 1.4 x 10-15 to 6.3 x 10-15 m-2/3 were observed over a propagation path that was up to 275 m above ground level. These values are generally much larger than those that would be observed at visible wavelengths under the same conditions because of the contributions of the humidity structure parameter and the cross correlation of the temperature and humidity structure parameters. We also address correlation of these measurements of Cn2 with fluctuations in the radar angle-of-arrival.

Paper Details

Date Published: 30 July 2002
PDF: 7 pages
Proc. SPIE 4744, Radar Sensor Technology and Data Visualization, (30 July 2002); doi: 10.1117/12.488282
Show Author Affiliations
E. Jeff Holder, Georgia Institute of Technology and Georgia Tech Research Institute (United States)
James Clayton Kerce, Georgia Institute of Technology and Georgia Tech Research Institute (United States)
Ronald A. Smith, U.S. Army Space and Missile Defense Command (United States)
Mark Shipman, U.S. Army Space and Missile Defense Command (United States)
Robert W. McMillan, U.S. Army Space and Missile Defense Command (United States)
James K. Williams, Technovative Applications, Inc. (United States)


Published in SPIE Proceedings Vol. 4744:
Radar Sensor Technology and Data Visualization
Nickolas L. Faust; Nickolas L. Faust; James L. Kurtz; Robert Trebits, Editor(s)

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