Intensity fluctuations of reflected wave from a diffuse target with a hard edge in atmospheric turbulence

Spatiotemporal characteristics of dynamic speckle from a 3D target in atmospheric turbulence

“…(2) When , tends to a value larger than zero and independent to the direction of . The value is called Residual Scintillation Index which indicate the intensity fluctuation of the scattering light as a whole [ 19 ]. (3) According to the falling speed of the curves in the presence of turbulence, the speckle field fluctuates at two space scales.…”

“…Olga korotkova conducted theoretical and Numerical researches on the backward enhancement effect of laser light scattered by a retroreflector in the marine turbulence [ 17 ]. The authors of this paper have been committed to the research on speckle field in turbulent atmosphere, and have studied the four-order moments of the speckle field from targets such as set of point scatterer [ 18 ], hard-edge aperture plane targets [ 19 ] and particle cluster [ 20 ] in turbulent atmosphere in recent years. However, the characteristics of spatiotemporal correlation of the speckle from a 3D target with arbitrary shape have not been perfectly solved.…”