Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Melissa Beason"'
Publikováno v:
Unconventional Imaging and Adaptive Optics 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ff222a64cb5499645610adff343e6d9
https://doi.org/10.1117/12.2632052
https://doi.org/10.1117/12.2632052
Autor:
Jack E. McCrae, Santasri R. Bose- Pillai, Benjamin Wilson, Trevor Cross, Melissa Beason, Steven T. Fiorino, Kevin Lieb
Publikováno v:
2022 IEEE Aerospace Conference (AERO).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ffbb9ee9aa95bf694379c96ddc0cbbc
https://doi.org/10.1109/aero53065.2022.9843747
https://doi.org/10.1109/aero53065.2022.9843747
Autor:
Larry Andrews, Melissa Beason
Publikováno v:
Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP).
Spot radius is dependent upon whether the receiver is in the near or far field which becomes significant when considering beam skewness. We compare methods to calculate beam radii, impact on skewness, and suggest an empirical method to transition bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a5d54797aa77c094c7cc530dfc3f13c
https://doi.org/10.1364/pcaop.2022.pw4f.1
https://doi.org/10.1364/pcaop.2022.pw4f.1
Publikováno v:
Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP).
We present closed-form expressions for low-order-aberration-removed, aperture-averaged anisoplanatic error across horizontal paths. These solutions are not only computationally inexpensive but easily invertible to numerically calculate extended isopl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88aeda4e17706efc4c3d476f37342745
https://doi.org/10.1364/pcaop.2022.pw4f.6
https://doi.org/10.1364/pcaop.2022.pw4f.6
Publikováno v:
Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP).
A method of automated turbulence characterization has been developed for sonic anemometer data. We found that the structure function slope followed an exponential curve and used that observation to incorporate a surrogate function to simplify finding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f2f95f762c07ac1a936a2799afaecd0
https://doi.org/10.1364/pcaop.2022.ptu4d.7
https://doi.org/10.1364/pcaop.2022.ptu4d.7
Publikováno v:
Unconventional Imaging and Adaptive Optics 2021.
This effort characterizes proper sampling of laser speckle in wave-optics simulations, with an emphasis on active imagers in outdoor environments. Modeling of performance degradations induced by speckle is critical in the design of such devices. We e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9afb2f4d11355423b5280535b06d0aee
https://doi.org/10.1117/12.2595469
https://doi.org/10.1117/12.2595469
Autor:
Melissa Beason
Publikováno v:
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP).
We investigate the impact of non-Kolmogorov turbulence on a propagating beam by examining the resulting Rytov variance, Fried parameter, isoplanatic angle and beam radius with particular consideration of the generalized structure function parameter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0941c11294336d9ac0b701a2c1a2cce0
https://doi.org/10.1364/pcaop.2021.pw3f.4
https://doi.org/10.1364/pcaop.2021.pw3f.4
Autor:
Melissa Beason, Derek J. Burrell
Publikováno v:
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP).
We propose statistical metrics to quickly evaluate speckle’s influence on atmospheric wavefront sensing. Integrating over multiple pupil-plane speckle re- alizations, we find that the skewness in irradiance is ideally 1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1407fd0221ada419426e3ffbd0796bb9
https://doi.org/10.1364/pcaop.2021.pw4f.5
https://doi.org/10.1364/pcaop.2021.pw4f.5
Over the years, there has been much interest in the use of optical wavelengths for communication because of the potential for high data rates. However, the performance of these systems can become significantly degraded due to turbulence-induced signa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1dcb0a70c00deaa68454cef76d7cfff
https://publica.fraunhofer.de/handle/publica/265969
https://publica.fraunhofer.de/handle/publica/265969
Autor:
Melissa Beason, Szymon Gladysz
Publikováno v:
Optical Sensors and Sensing Congress.
Large apertures are used in FSOC systems to increase signal and reduce scintillation. Based on simulations of a realistic FSOC system using a Gaussian beam we found significant changes in the empirical PDF with increasing aperture size. We compare th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::573ba71dd65ffdaad54e2e3a849acd7d
https://doi.org/10.1364/pcaop.2020.pm3d.2
https://doi.org/10.1364/pcaop.2020.pm3d.2