Statistics of Speckle Propagation
Abstract
The study of the statistical effects of atmospheric turbulence on coherent radiation scattered from a diffuse target is extended, both theoretically and experimentally, to include the effects of target glint and partial temporal coherence of the source. Theoretically, expressions are developed for 1st and 2nd order moments of irradiance for targets containing multiple glints, and for a partially coherent source. The expression for the normalized variance of irradiance for a diffuse target with a single glint illuminated by a coherent source over a horizontal atmospheric path is evaluated numerically for comparison with experimental results. Experimental measurements of the variance and covariance of irradiance for a coherent source illuminating a diffuse target containing a single glint are discussed along with preliminary results for the illumination of a diffuse target with a partially coherent source.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1979
- Accession Number
- ADA067995
Entities
People
- Charles M. Mcintyre
- J. Richard Kerr
- James H Churnside
- Myung H. Lee