Covariance of the received intensity of a partially coherent laser speckle pattern in the turbulent atmosphere.
A theoretical expression for the covariance of the received intensity of a partially coherent laser speckle pattern after propagation through the turbulent atmosphere is developed. It is shown that the atmospheric perturbation on a partially coherent speckle pattern can be decomposed into a coherent term and an incoherent term. The dependence of contributions of these components on the level of turbulence, vacuum speckle-contrast ratio, and detector spacing is studied in detail and the results are compared with the available experimental data.
Gudimetla
V S
VS
Holmes
J F
JF
Fossey
M E
ME
Pincus
P A
PA