Anticipating optical availability in hybrid RF/FSO links using RF beacons and deep learning
Radiofrequency (RF) communications offer reliable but low data rates and energy-inefficient
satellite links, while free-space optical (FSO) promises high bandwidth but struggles with …
satellite links, while free-space optical (FSO) promises high bandwidth but struggles with …
Comparison of different models for ground-level atmospheric turbulence strength (Cn2) prediction with a new model according to local weather data for FSO …
A Arockia Bazil Raj, J Arputha Vijaya Selvi… - Applied optics, 2015 - opg.optica.org
Atmospheric parameters strongly affect the performance of free-space optical
communication (FSOC) systems when the optical wave is propagating through the …
communication (FSOC) systems when the optical wave is propagating through the …
Turb-Seg-Res: A Segment-then-Restore Pipeline for Dynamic Videos with Atmospheric Turbulence
Tackling image degradation due to atmospheric turbulence particularly in dynamic
environments remains a challenge for long-range imaging systems. Existing techniques …
environments remains a challenge for long-range imaging systems. Existing techniques …
A data-constrained algorithm for the emulation of long-range turbulence-degraded video
KJ Miller, B Preece, TW Du Bosq… - … Modeling, and Testing …, 2019 - spiedigitallibrary.org
Atmospheric turbulence can cause significant image quality degradation in long-range,
ground-to-ground imagery. There is recent interest in characterizing the performance of …
ground-to-ground imagery. There is recent interest in characterizing the performance of …
Turbulence strength C n2 estimation from video using physics-based deep learning
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 …
flow of air cells with random temperatures, and thus refractive indices. This phenomenon …
[图书][B] Free space optical communication: system design, modeling, characterization and dealing with turbulence
AAB Raj - 2015 - books.google.com
Recent progress in ICT has exceeded our expectations for meeting the requirement of
multimedia society in the 21st century. The FSOC is considered to be one of the key …
multimedia society in the 21st century. The FSOC is considered to be one of the key …
Convolutional neural networks for inference of space object attitude status
Convolutional neural networks (CNNs) are utilized for the task of inferring the attitude status
in terms of rotation rate of resident space objects (RSOs) using simulated light curve …
in terms of rotation rate of resident space objects (RSOs) using simulated light curve …
A Neural Network Method for Inversion of Turbulence Strength
W Yin, B Zhang, P Meng, L Zhou, D Qi - Journal of Nonlinear Mathematical …, 2024 - Springer
Accurate inversion of atmospheric turbulence strength is a challenging problem in modern
turbulence research due to its practical significance. Inspired by transfer learning, we …
turbulence research due to its practical significance. Inspired by transfer learning, we …
Crosswind sensing from optical-turbulence-induced fluctuations measured by a video camera
O Porat, J Shapira - Applied Optics, 2010 - opg.optica.org
We present a novel method for remote sensing of crosswind using a passive imaging
device, such as a video recorder. The method is based on spatial and temporal correlations …
device, such as a video recorder. The method is based on spatial and temporal correlations …
Relationship between turbulent image variance and average image gradient
G Potvin - JOSA A, 2024 - opg.optica.org
Optical turbulence can cause substantial distortions in imaging over long horizontal paths.
For Lambertian objects, these distortions are only seen where there is a gradient in the …
For Lambertian objects, these distortions are only seen where there is a gradient in the …