On choosing layer profiles in atmospheric tomography

Adapting to the Atmosphere Conference 2014

物理学;地球科学

Auzinger, Günter^1

Industrial Mathematics Institute of JKU Linz, Austria^1

关键词: Atmospheric tomography;    Horizontal layers;    In-control;    Reconstruction algorithms;    Tomographic reconstruction;    Turbulent layer;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/595/1/012001/pdf
DOI  :  10.1088/1742-6596/595/1/012001

来源: IOP

【 摘 要 】

In control of the AO system of an ELT, most algorithms for atmospheric tomography are based on assuming atmospheric turbulence to occur only within a certain number of horizontal layers. The number of these layers is in general significantly smaller than the number of turbulent layers in the real atmosphere. We investigate the question, how the choice of the number and heights of the hypothetical layers (as parameters of the reconstruction algorithm) influences the resulting quality of the tomographic reconstruction.