The application provides a
laser transmission method and
system for atmospheric turbulence adaptive compensation, and relates to the technical field of
optical communication. A distorted
laser beam is received by a receiving aperture and physically split for detection, and an instantaneous sequence of
light intensity, a two-dimensional tilt vector in
time domain and a residual high-order phase array are synchronously extracted. The tilt vector is converted into a low-
order control instruction in a first
control period, the residual high-order phase array is corrected by a physical
wind speed feedforward in a second
control period and converted into a high-
order control instruction, and the
stroke saturation and the physical driving
voltage saturation are output at the end of the period. The
light intensity sequence is collected to calculate a
light intensity flicker index, a multi-dimensional channel state matrix is constructed by combining the
bit error rate, the
stroke and the
voltage saturation, a three-state transfer decision is made according to the relationship between the numerical value of the elements in the matrix and a preset threshold, and finally, corresponding communication modulation format switching and receiving aperture physical adjustment are performed according to the decision result, so that
time sequence decoupling and cross-layer linkage are realized, and the strong turbulence link
breakage rate is greatly reduced.