Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ernst Polnau"'
Autor:
Mikhail A. Vorontsov, Ernst Polnau
Publikováno v:
Photonics, Vol 11, Iss 9, p 786 (2024)
The objective of this study, which is divided into two parts, is twofold: to address long-standing challenges in the sensing of atmospheric turbulence-induced wavefront aberrations under strong scintillation conditions via a comparative analysis of s
Externí odkaz:
https://doaj.org/article/0dc5a52ffb064e14a32549caa1d2e524
Publikováno v:
Photonics, Vol 9, Iss 11, p 789 (2022)
This study introduces electro-optical (EO) sensors (TurbNet sensors) that utilize a remote laser beacon (either coherent or incoherent) and an optical receiver with CCD camera and embedded edge AI computer (Jetson Xavier Nx) for in situ evaluation of
Externí odkaz:
https://doaj.org/article/76be579f3a3d4f8783c97c5b7ebe6000
Publikováno v:
Applied Sciences, Vol 10, Iss 22, p 8136 (2020)
A new paradigm for machine learning-inspired atmospheric turbulence sensing is developed and applied to predict the atmospheric turbulence refractive index structure parameter using deep neural network (DNN)-based processing of short-exposure laser b
Externí odkaz:
https://doaj.org/article/a98bb9f25f954868a1faff2ac9225525
Publikováno v:
Real-Time Image Processing and Deep Learning 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc08a58e03b5ca402e4ac23cc09e34e
https://doi.org/10.1117/12.2618431
https://doi.org/10.1117/12.2618431
Publikováno v:
Free-Space Laser Communications XXXIV.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b82be5bba8851973a4e22463083acf4
https://doi.org/10.1117/12.2618110
https://doi.org/10.1117/12.2618110
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans X.
Probability density functions of Gaussian laser beam irradiance measured after propagation over 7km atmospheric path in comparison with various theoretical models are presented. The initial laser beam diameter at the e-2 intensity level was about 6 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de69be3b72e5f888dad155156140f1c
https://doi.org/10.1117/12.2594260
https://doi.org/10.1117/12.2594260
Publikováno v:
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP).
A deep machine learning signal processing paradigm is applied for prediction of the atmospheric turbulence refractive index structure parameter Cn^2 via DNN-based processing of data received from electro-optical sensors and evaluation of the most pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4dd81703512148a38734921a5bbe7db
https://doi.org/10.1364/pcaop.2021.pm2h.1
https://doi.org/10.1364/pcaop.2021.pm2h.1
Publikováno v:
Optical Sensors and Sensing Congress.
The presentation provides an overview of laser beam propagation experiments performed between Mauna Loa and Haleakala summits (149 km propagation distance) between April 3 and April 15, 2019. The measured data demonstrate high variability and strong
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7a7d9f6121054e872ae8b27cb2b9d0
https://doi.org/10.1364/pcaop.2020.pm1d.3
https://doi.org/10.1364/pcaop.2020.pm1d.3
Autor:
Mikhail A. Vorontsov, Ernst Polnau
Publikováno v:
Imaging and Applied Optics Congress.
The possibility of target-in-the-loop atmospheric sensing (TILAS) using a low-power laser transceiver and a retro-target attached into a flying drone for atmospheric turbulence profiling is discussed and demonstrated. The results of first field tests
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3539255220b00da803bd2a325aca5d58
https://doi.org/10.1364/3d.2020.jw5b.4
https://doi.org/10.1364/3d.2020.jw5b.4
Autor:
Mikhail A. Vorontsov, Ernst Polnau
Publikováno v:
Journal of Optics. 23:125608
New capabilities for atmospheric turbulence spatio-temporal dynamics characterization and refractive index structure parameter ( C n 2 ) sensing via white light imaging of remotely located non-cooperative targets using an optical system with a neurom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9160dffbc89e65c72ba28ea93935673
https://doi.org/10.1088/2040-8986/ac39b2
https://doi.org/10.1088/2040-8986/ac39b2