Wavefront correction method based on wavefront prediction model

MA Yulei; DU Guangxin

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Wavefront correction method based on wavefront prediction model

Optical Information Technology | 更新时间：2026-03-24

- Wavefront correction method based on wavefront prediction model
- OPTICAL TECHNIQUE Vol. 52, Issue 2, Pages: 203-210(2026)
- 作者机构：
  
  1.新乡学院计算机与信息工程学院，河南新乡 453000
  2.中国人民解放军32096部队，湖北武汉 430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP394.1;TH691.9
- Received：01 December 2025，
  
  Revised：2026-01-09，
  
  Published：20 March 2026
- 稿件说明：
移动端阅览
马玉磊,杜广鑫.基于波前预测模型的波前校正方法[J].光学技术,2026,52(02):203-210.

MA Yulei,DU Guangxin.Wavefront correction method based on wavefront prediction model[J].OPTICAL TECHNIQUE,2026,52(02):203-210.
马玉磊,杜广鑫.基于波前预测模型的波前校正方法[J].光学技术,2026,52(02):203-210. DOI：

MA Yulei,DU Guangxin.Wavefront correction method based on wavefront prediction model[J].OPTICAL TECHNIQUE,2026,52(02):203-210. DOI：

摘要

针对自适应光学中波前传感器与波前校正之间的时延问题，提出一种基于波前预测模型的自适应光学波前实时校正方法。波前预测模型由两个并行分支构成，第一个分支基于波前时间序列计算差分波前序列以得到大气湍流的时域动态演化信息，将其传入长短期记忆网络提取大气湍流演化的动态特征；第二个分支将波前时间序列传入增强的Transformer编码器提取波前序列的时间域依赖性，并使用多尺度卷积层提取每个波前系数的空间域特征

从而得到包含畸变波前时空域信息的特征。最终，通过交叉注意力机制动态地从第一个分支输出特征中筛选与当前波前预测最相关的动态特征，基于动态特征与Transformer编码特征的融合信息进行波前预测。仿真结果表明，在强、中与弱湍流下，所提波前预测模型的均方根误差分别比次优模型减少43.8%、43.9%和57.9%。

Abstract

Aiming at the problem of time delay between wavefront sensor and wavefront correction in adaptive optics

a wavefront real-time correction method based on wavefront prediction model for adaptive optics is proposed. The wavefront prediction model consists of two parallel branches

in the first branch

the difference wavefront sequence is computed based on wavefront time sequence to generate the temporal dynamic evolutionary information of the atmospheric turbulence

and it is delivered to long short term memory network to extract the dynamic features of atmospheric turbulence evolution. In the second branch

the wavefront time sequence is delivered to the enhanced Transformer encoder to extract the temporal dependency of the time sequence

and a multi-scale convolutional neural layer is introduced to extract the spatial features of each wavefront Zernike coefficient

to generate features including temporal and spatial information of the aberration wavefronts. Finally

the dynamic features most relevant to current wavefront prediction are selected from the features come from the first branch by using of cross-attention mechanism

and the future wavefront are predicted based on the information with combination of dynamic features and Transformer encoded features. Simulation results show that under the conditions of strong

moderate and weak turbulent atmospheric

the root mean square error of the proposed wavefront prediction model decreases by 43.8%

43.9% and 57.9% respectively compared to the second-best method.

关键词

Keywords

references

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