Лавринова Л.В., Лавринов Л.В., Антошкин Л.В. Numerical study of laser radiation estimation in the focal plane
- Details
- Hits: 17
https://doi.org/10.15688/mpcm.jvolsu.2025.4.6
Lidiya N. Lavrinova
Candidate of Physical and Mathematical Sciences, Senior researcher, V.E. Zuev Institute of Atmospheric Optics SB RAS
This email address is being protected from spambots. You need JavaScript enabled to view it.
,
Academician Zuev square, 1, 634055 Tomsk, Russian Federation
Vitaliy V. Lavrinov
Candidate of Physical and Mathematical Sciences, Senior researcher, V.E. Zuev Institute of Atmospheric Optics SB RAS
This email address is being protected from spambots. You need JavaScript enabled to view it.
,
Academician Zuev square, 1, 634055 Tomsk, Russian Federation
Leonid V. Antoshkin
Senior researcher, V.E. Zuev Institute of Atmospheric Optics SB RAS
This email address is being protected from spambots. You need JavaScript enabled to view it.
,
https://orcid.org/0000-0003-2136-4711
Academician Zuev square, 1, 634055 Tomsk, Russian Federation
Abstract. This paper presents the results of studies performed on the basis of a numerical model of the Shack-Hartmann wavefront sensor and estimating optical radiation in the focal plane using the weighted center of gravity algorithm depending on the intensity of phase distortions. The subject of the study is the algorithm of weighted centers of gravity of focal spots recorded by the photosensitive matrix of a video camera from the standpoint of the accuracy and speed of optoelectronic systems designed to measure phase fluctuations of optical radiation under atmospheric turbulence. Methods for optimizing the centroiding of the radiation image in the recording plane are considered. The results of experiments performed on the basis of a numerical model of the Shack-Hartmann wavefront sensor are presented. It is shown that estimating the product of the recorded intensity distribution and the two-dimensional Gaussian distribution as a weighting function within an analysis window of a size corresponding to the variance of the normal Gaussian distribution ensures the speed and accuracy of measuring local tilts of the optical radiation wavefront. An architecture of artificial neural networks for centroidization of radiation images in the recording plane is presented.
Key words: optical radiation, wavefront sensor, artificial neural networks.
Numerical study of laser radiation estimation in the focal plane by Лавринова Л.В., Лавринов Л.В., Антошкин Л.В. is licensed under a Creative Commons Attribution 4.0 International License.
Citation in English: Mathematical Physics and Computer Simulation. Vol. 28 No. 4 2025, pp. 120-133
 lavrinova.pdfURL: https://mp.jvolsu.com/index.php/en/component/attachments/download/1267 | 5 Downloads |