Laser guide stars and models of atmospheric turbulence

2007 ◽  
Author(s):  
L. A. Bol'basova ◽  
V. P. Lukin
Keyword(s):  
Atmospheric Turbulence ◽  
Laser Guide Stars ◽  
Laser Guide

Method for atmospheric turbulence profile measurement from observation of laser guide stars

2017 ◽  
Vol 30 (2) ◽  
pp. 176-183 ◽  
Author(s):  
V. V. Nosov ◽  
V. P. Lukin ◽  
E. V. Nosov ◽  
A. V. Torgaev
Keyword(s):  
Atmospheric Turbulence ◽  
Profile Measurement ◽  
Laser Guide Stars ◽  
Laser Guide

scholarly journals Remote Sensing of Atmospheric Turbulence Profiles by Laser Guide Stars

2020 ◽  
Vol 237 ◽  
pp. 06014
Author(s):  
Xiwen Qiang
Keyword(s):  
Remote Sensing ◽  
Atmospheric Turbulence ◽  
Adaptive Optics ◽  
Image Motion ◽  
Inversion Algorithm ◽  
Laser Guide Stars ◽  
Atmospheric Structure ◽  
Structure Constants ◽  
Laser Guide ◽  
Motion Method

Ranged-resolved profiles of atmospheric turbulence are necessary and important for many applications in astronomical and adaptive optics communities. In order to characterize the vertical atmospheric structure in field, a technique is put forward to remote sensing ranged-resolved profiles of atmospheric turbulence by combined with laser guide stars and differential image motion method. Laser guide stars are formed at several successive altitudes by projecting pulsed laser, returned signals of images are received by a optical system with two receiving telescopes, and variance of centroids′ distance is derived from the images with two spots at the same altitude. So, based on a inversion algorithm, atmospheric turbulence profiles are retrieved from differential image motion variance of distance of centroids at various altitudes. The structure constants of refractive index of atmosphere range from 10-14m-2/3 at lower altitudes to 10-16m-2/3 at higher altitudes are remote sensed experimentally. The results show it is a effective method that combined laser guide stars with differential image motion method and could sense atmospheric turbulence profiles remotely in real time.

scholarly journals Remote sensing of atmospheric turbulence profiles by laser guide stars

2017 ◽  
Author(s):  
Xiwen Qiang ◽  
Tianhua Liu ◽  
Shuanglian Feng ◽  
Fei Zong ◽  
Min Wu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Atmospheric Turbulence ◽  
Laser Guide Stars ◽  
Laser Guide

Review on Remote Sensing of Atmospheric Turbulence Profiles by Laser Guide Stars

2013 ◽  
Vol 303-306 ◽  
pp. 823-826
Author(s):  
Xi Wen Qiang ◽  
Jun Wei Zhao ◽  
Shuang Lian Feng ◽  
Min Wu ◽  
Jing Yong Chang ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Atmospheric Turbulence ◽  
Adaptive Optics ◽  
Image Motion ◽  
Inversion Algorithm ◽  
Laser Guide Stars ◽  
Atmospheric Structure ◽  
Structure Constants ◽  
Laser Guide ◽  
Motion Method

Ranged-resolved profiles of atmospheric turbulence are necessary and important for many applications in astronomical and adaptive optics communities. In order to characterize the vertical atmospheric structure in field, a technique is put forward to remote sensing ranged-resolved profiles of atmospheric turbulence by combined with laser guide stars and differential image motion method. Laser guide stars are formed at several successive altitudes by projecting pulsed laser, returned signals of images are received by a optical system with two receiving telescopes, and variance of centroids distance is derived from the images with two spots at the same altitude. So, based on a inversion algorithm, atmospheric turbulence profiles are retrieved from differential image motion variance of distance of centroids at various altitudes. The structure constants of refractive index of atmosphere range from 10-14m-2/3 at lower altitudes to 10-16m-2/3 at higher altitudes are remote sensed experimentally. The results show it is a effective method that combined laser guide stars with differential image motion method and could sense atmospheric turbulence profiles remotely in real time.

scholarly journals On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars

2017 ◽  
pp. stx062
Author(s):  
A. G. Basden ◽  
L. Bardou ◽  
D. Bonaccini Calia ◽  
T. Buey ◽  
M. Centrone ◽  
...  
Keyword(s):  
Matched Filters ◽  
Laser Guide Stars ◽  
Laser Guide

A high precision phase reconstruction algorithm for multi-laser guide stars adaptive optics

2016 ◽  
Vol 25 (9) ◽  
pp. 094214 ◽  
Author(s):  
Bin He ◽  
Li-Fa Hu ◽  
Da-Yu Li ◽  
Huan-Yu Xu ◽  
Xing-Yun Zhang ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
High Precision ◽  
Reconstruction Algorithm ◽  
Phase Reconstruction ◽  
Laser Guide Stars ◽  
Precision Phase ◽  
Laser Guide
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