Error sources in SLODAR turbulence profile fitting

Error sources in SLODAR turbulence profile fitting
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SLODAR 湍流剖面拟合中的误差源

DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
R. Wilson
R. Wilson
中科院分区:
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文献类型:
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作者:
T. Butterley;J. Osborn;R. Wilson

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本文讨论了一些主要的误差源,影响使用的斜率检测和测距(SLODAR)技术恢复大气湍流廓线从夏克哈特曼波前传感器的数据。我们在这里解决的最重要的因素是时间采样-我们检查由于低风速(或数据集不够长)的波前斜率的空间协方差的平均斜率相关性差的影响。我们将讨论这如何影响所观察到的湍流外尺度。描述了双SCIDAR- SLODAR仪器,其理想地适合于探索这些效应的影响,并可能校正它们。从仪器的一些初步结果。
This paper discusses some of the main error sources that affect use of the Slope Detection and Ranging (SLODAR) technique to recover atmospheric turbulence profiles from Shack-Hartmann wavefront sensor data. The most significant factor we address here is that of temporal sampling - we examine the effect of poorly-averaged slope correlations due to low wind speeds (or data sets that are insufficiently long) on spatial covariances of wavefront slopes. We discuss how this can affect the observed outer scale of the turbulence. A dual SCIDAR- SLODAR instrument is described that is ideally suited to exploring the impact of these effects and, potentially, correcting them. Some preliminary results from the instrument are presented.
DOI: 10.1093/mnras/stt2150
发表时间: 2013-12
影响因子: 4.8
作者:
H. Shepherd;J. Osborn;R. Wilson;T. Butterley;R. Avila;V. Dhillon;T. Morris
通讯作者: H. Shepherd;J. Osborn;R. Wilson;T. Butterley;R. Avila;V. Dhillon;T. Morris
MOAO 首次与 CANARY 进行空中演示
DOI: 10.1051/0004-6361/201116658
发表时间: 2011
影响因子: 6.5
作者:
Gendron E
通讯作者: Gendron E