Imaging atmospheric turbulence, using entropy to quantify turbulence strength
Sign Up to like & getrecommendations! Published in 2020 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/20/11/180
Abstract: Vertical profile of turbulence strength (C n) is one of the most important attributes for evaluating site’s astronomical performances. Although seeing is commonly used for describing turbulence strength, it could only represent the integral of… read more here.
Keywords: strength; turbulence using; turbulence; atmospheric turbulence ... See more keywords
Estimation of atmospheric optical turbulence strength in realistic airborne environments.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.459461
Abstract: In this paper, atmospheric optical turbulence strength is estimated for realistic airborne environments using a modified phase-variance approach, as well as a modified slope-discrepancy approach. Realistic airborne environments are generated using wave-optics simulations of a… read more here.
Keywords: optical turbulence; atmospheric optical; turbulence strength; airborne environments ... See more keywords
Turbulence strength C n2 estimation from video using physics-based deep learning.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.469976
Abstract: Images captured from a long distance suffer from dynamic image distortion due to turbulent flow of air cells with random temperatures, and thus refractive indices. This phenomenon, known as image dancing, is commonly characterized by… read more here.
Keywords: physics; turbulence strength; deep learning; estimation ... See more keywords
Retrieving Performances of Vortex Beams with GS Algorithm after Transmitting in Different Types of Turbulences
Sign Up to like & getrecommendations! Published in 2019 at "Applied Sciences"
DOI: 10.3390/app9112269
Abstract: The transmission of the orbital angular momentum (OAM) beam has attracted a lot of attention in the field of free-space optical (FSO) communication. Usually, after transmitting in atmospheric turbulences, the helical phase-front of OAM beams… read more here.
Keywords: oam beams; turbulence strength; retrieving performances; performances vortex ... See more keywords