Distortion wavefront prediction method based on deep learning
A distorted wavefront and deep learning technology, applied in the field of wavefront prediction and correction, and distorted wavefront prediction, can solve the problems of distorting mirror compensation wavefront lag, etc., to avoid the effect of correction errors
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[0020] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific implementation examples and with reference to the accompanying drawings.
[0021] figure 1 It is a workflow flowchart of a wavefront prediction method based on deep learning, and the specific steps are:
[0022] Step S1: Atmospheric turbulence is modeled according to the theory of atmospheric freezing, which assumes a time scale of 10-20ms, and in a few cases reaches 50-100ms. The sampling frequency of the AO system is generally about 1000 Hz, and the time delay is 2-3 sampling periods. Therefore, within a time delay of 2-3ms, the assumption of atmospheric freezing turbulence is reasonable, so we use the phase covariance function to simulate in MATLAB to generate a dynamic phase screen that conforms to the statistical distribution of atmospheric turbulence, and obtain the actual distorted ...
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