Estimation of the spatial coherence outer scale relevant to long baseline interferometry and imaging in optical astronomy.
A technique is proposed allowing estimation of the spatial coherence outer scale, from simultaneous measurements of Fried's parameter ro and of the variance of angle-of-arrival fluctuations. This optical parameter must be differentiated from the classical geophysical parameter called the outer scale of turbulence; its knowledge is important for long baseline interferometry and imaging in optical astronomy.
Borgnino
J
J