Optical communication in space: Challenges and mitigation techniques

H Kaushal, G Kaddoum - IEEE communications surveys & …, 2016 - ieeexplore.ieee.org
In recent years, free space optical (FSO) communication has gained significant importance
owing to its unique features: large bandwidth, license free spectrum, high data rate, easy …

Day/night whole sky imagers for 24-h cloud and sky assessment: history and overview

JE Shields, ME Karr, RW Johnson, AR Burden - Applied optics, 2013 - opg.optica.org
A family of fully automated digital whole sky imagers (WSIs) has been developed at the
Marine Physical Laboratory over many years, for a variety of research and military …

Correcting for focal-plane-array temperature dependence in microbolometer infrared cameras lacking thermal stabilization

PW Nugent, JA Shaw, NJ Pust - Optical Engineering, 2013 - spiedigitallibrary.org
Advances in microbolometer detectors have led to the development of infrared cameras that
operate without active temperature stabilization. The response of these cameras varies with …

Multi-layer wind velocity field visualization in infrared images of clouds for solar irradiance forecasting

G Terrén-Serrano, M Martínez-Ramón - Applied Energy, 2021 - Elsevier
The energy available in a solar energy powered grid is uncertain due to the weather
conditions at the time of generation. Forecasting global solar irradiance could address this …

Physics principles in radiometric infrared imaging of clouds in the atmosphere

JA Shaw, PW Nugent - European Journal of Physics, 2013 - iopscience.iop.org
Imaging the atmosphere with a thermal infrared camera can yield a rich variety of
information, ranging from the water-vapour content to the spatial distribution of clouds. Such …

Comparative analysis of methods for cloud segmentation in ground-based infrared images

G Terrén-Serrano, M Martínez-Ramón - Renewable Energy, 2021 - Elsevier
The increasing penetration of photovoltaic systems in the power grid makes it vulnerable to
cloud shadow projection. Real-time cloud segmentation in ground-based infrared images is …

Diurnal and nocturnal cloud segmentation of all-sky imager (ASI) images using enhancement fully convolutional networks

C Shi, Y Zhou, B Qiu, J He, M Ding… - Atmospheric …, 2019 - amt.copernicus.org
Cloud segmentation plays a very important role in astronomical observatory site selection. At
present, few researchers segment cloud in nocturnal all-sky imager (ASI) images. This paper …

Day and night clouds detection using a thermal-infrared all-sky-view camera

Y Wang, D Liu, W Xie, M Yang, Z Gao, X Ling… - Remote Sensing, 2021 - mdpi.com
The formation and evolution of clouds are associated with their thermodynamical and
microphysical progress. Previous studies have been conducted to collect images using …

Radiometric calibration of infrared imagers using an internal shutter as an equivalent external blackbody

PW Nugent, JA Shaw, NJ Pust - Optical Engineering, 2014 - spiedigitallibrary.org
Advances in microbolometer long-wave infrared (LWIR) detectors have led to the common
use of infrared cameras that operate without active temperature stabilization, but the …

Long-wave infrared imaging for non-invasive beehive population assessment

JA Shaw, PW Nugent, J Johnson, JJ Bromenshenk… - Optics …, 2010 - opg.optica.org
Long-wave infrared imaging is used for non-invasive assessment of the internal population
of honey bee colonies. The radiometrically calibrated camera signal is related to the number …