A Novel Sophia-SPGD (Stochastic Parallel Gradient Descent) Optimization Method for Wavefront Correction in WFS-Less AO (Wavefront Sensorless Adaptive Optics) Systems Article Swipe
Peng Chen
,
Wenjie Yang
,
Yanqi Ge
,
Zhiguang Zhang
,
Xianshuo Li
,
Zhengqing Qi
,
Huizhen Yang
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/photonics12040337
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/photonics12040337
In wavefront sensorless adaptive optics (WFS-less AO) systems, stochastic parallel gradient descent (SPGD) is the primary optimization method for correcting wavefront distortions. However, as the intensity of atmospheric turbulence interference increases, the fixed gain coefficient of the SPGD algorithm results in significant decreases in convergence speed and precision. Moreover, the algorithm is inclined to local optima, thus failing to satisfy the requirements for real-time wavefront distortion correction. To address these issues, this paper introduces a new optimization algorithm, Sophia optimized stochastic parallel gradient descent (Sophia-SPGD), which is based on second-order clipped stochastic optimization in deep learning. This algorithm computes the first-order and second-order moments of the performance metrics from its first and second gradients, respectively, and dynamically modulates the gain via a shearing mechanism to increase the convergence speed and diminish the probability of falling into local optima. Numerical simulations and experiments demonstrate that under strong turbulence conditions, the performance of Sophia-SPGD surpasses that of the traditional SPGD algorithm.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/photonics12040337
- OA Status
- gold
- Cited By
- 4
- References
- 29
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4409104632
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4409104632Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/photonics12040337Digital Object Identifier
- Title
-
A Novel Sophia-SPGD (Stochastic Parallel Gradient Descent) Optimization Method for Wavefront Correction in WFS-Less AO (Wavefront Sensorless Adaptive Optics) SystemsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-04-02Full publication date if available
- Authors
-
Peng Chen, Wenjie Yang, Yanqi Ge, Zhiguang Zhang, Xianshuo Li, Zhengqing Qi, Huizhen YangList of authors in order
- Landing page
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https://doi.org/10.3390/photonics12040337Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3390/photonics12040337Direct OA link when available
- Concepts
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Wavefront, Adaptive optics, Gradient descent, Wavefront sensor, Optics, Stochastic gradient descent, Deformable mirror, Computer science, Physics, Artificial neural network, Artificial intelligenceTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
4Total citation count in OpenAlex
- Citations by year (recent)
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2025: 4Per-year citation counts (last 5 years)
- References (count)
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29Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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