Adaptive Optics for Extremely Large Telescopes III ANALYSIS OF THE FROZEN FLOW ASSUMPTION USING GEMS TELEMETRY DATA
Adaptive Optics for Extremely Large Telescopes III ANALYSIS OF THE FROZEN FLOW ASSUMPTION USING GEMS TELEMETRY DATA
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超大望远镜的自适应光学 III 使用 GEMS 遥测数据分析冻结流假设
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Guesalaga
中科院分区：
文献类型：
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作者：
Á. Cortés;Alexander Rudy;B. Neichel;L. Poyneer;M. Ammons;Andrés;Guesalaga
我们使用来自Gemini南多共轭自适应光学系统（GeMS）的遥测数据，使用两种类型的算法来研究冻结流假设的有效性：i）波前传感器（WFS）测量的时空互相关;和ii）预测傅立叶控制（PFC）框架。每种技术的优点和缺点，以及他们的能力，以确定层的数量和相关的速度。还讨论了它们在确定高度方面的潜在用途，即湍流剖面仪。来自模拟和天空数据的例子。
We use telemetry data from the Gemini south multi-conjugate adaptive optics system (GeMS) to study the validity of the frozen Flow hypothesis using two types of algorithms: i) the spatio-temporal crosscorrelations of the wave-front sensor (WFS) measurements; and ii) the Predictive Fourier Control (PFC) framework. The pros and cons of each technique are identified as well as their ability to determine the number of layers present and the associated velocities. Their potential use to determine the altitude, i.e. turbulence profiler, is also addressed. Examples derived from simulations and on-sky data are presented.