Temporal convergence of phase spatial covariance matrix measurements in tomographic adaptive optics

Temporal convergence of phase spatial covariance matrix measurements in tomographic adaptive optics
复制标题

断层摄影自适应光学中相位空间协方差矩阵测量的时间收敛

DOI:
--
复制
发表时间:
2012
期刊:
Other Conferences
影响因子:
--
通讯作者:
F. Vidal
F. Vidal
中科院分区:
--
文献类型:
--
作者:
O. Martin;E. Gendron;G. Rousset;F. Vidal

文献摘要

参考文献

被引文献

相似文献

在自适应光学中,空间协方差矩阵的识别是实现最优估计层析重建所必需的。我们使用的天空测量金丝雀,天空演示MOAO的EAGLE,研究统计收敛的空间协方差的Shack-Hartmann测量。我们描述了一个新的,更快的,分析近似模型的空间协方差,并最终带来了光模型识别的新程序,减少断层扫描误差。我们量化了新方法在数值模拟和天空数据上带来的收益。
The identification of spatial covariance matrices is required in adaptive optics in order to perform tomographic reconstruction with optimal estimators. We use on-sky measurements from Canary, the on-sky demonstrator of MOAO for EAGLE, to study the statistical convergence of the spatial covariance of Shack-Hartmann measurements. We describe a new, faster, analytical approximated model for this spatial covariance, and finally bring into light a new procedure for model identification, reducing the tomographic error. We quantify the gain brought by the new approach on both numerical simulations and on-sky data.
CANARY 空中 MOAO 演示器的状态更新
DOI: 10.1117/12.857668
发表时间: 2010
期刊: --
影响因子: --
作者:
Gendron E
通讯作者: Gendron E