THE EFFECT OF A TURBULENT MEDIUM ON THE POWER PATTERN OF A WAVEFRONT TRACKING CIRCULAR APERTURE.
Abstract
The angular power pattern, or equivalently the image plane intensity distribution, is obtained for a circular aperture receiving a plane wave perturbed in transmission through a turbulent atmosphere. The aperture is assumed always to be aligned so as to minimize the area integral of mean square phase fluctuation. This alignment is shown to be that effected by a conventional angle tracking servomechanism. Homogeneous, isotropic turbulence is assumed, and the aperture is taken to be of moderate size so that the 5/3 law phase structure function predicted by use of the Obukhov-Kolmogorov theory of turbulence applies adequately over its full extent. Power patterns for tracking and nontracking apertures are compared.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1966
- Accession Number
- AD0487549
Entities
People
- G. R. Heidbreder
- R. L. Mitchell
Organizations
- The Aerospace Corporation