Pneumatic optical effect corrector based on self-illuminating wavefront sensor

Abstract

The invention provides a pneumatic optical effect corrector based on a self-illuminating wavefront sensor. The corrector comprises a self-illuminating wavefront measuring instrument, an image collector, and a processor. The self-illuminating wavefront measuring instrument is used to transmit a collimated laser beam, receives a distorted wavefront generated after diffusion light of the collimated laser beam diffused by atmospheric particles is subjected to optical effect, and extracts a deviation parameter of a distorted wavefront. The image collector is used to receive target light wave carrying an original image of a target region and perform image processing of image data of the original image to obtain a real image of the target region. The processor is used for deconvolution operation on the deviation parameter and the real image of the target region to obtain a reconstructed image of the target region. The corrector reconstructs a laser distortion source to effectively measure in real time the wavefront distortion caused by pneumatic optical effect, so that the precision and accuracy of wavefront distortion measurement are both high, and thus good correction effect and practicality of the system are further guaranteed.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an aero-optical effect correction device based on a self-illuminating wavefront sensor. Background technique [0002] Aerial images can accurately and comprehensively provide dynamic observation data on a global scale. It is one of the important means of obtaining information in various fields and has very important application value. Aerial images have the advantages of high definition, large scale, small area, and high visibility. Among them, aerial images can be obtained by shooting ground scenes and objects through the high-resolution image acquisition equipment mounted on the aircraft. [0003] However, when the aircraft flies in the atmosphere at high speed, due to the real gas effect between the optical hood and the free flow, the separation of the boundary layer induced by the shock wave, the mutual interference between the inviscid flow and the boundary layer, ...

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Problems solved by technology

[0005] The inventor found in the research that the measurement of wavefront distortion by the aero-optical effect correction device in the prior art is based on visible light, and aerial photography at night is limited by visible light waves, so that the accuracy and accuracy of wavefront distortion measurement are low. is not high, resulting in poor correction effect and low practicability of the correction device

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