Affiliation:
1. Chinese Academy of Sciences
2. University of Chinese Academy of Sciences
Abstract
Ground layer adaptive optics (GLAO) has been widely employed in
wide-field observations with ground-based telescopes. However, the
present evaluation of GLAO performance lacks a criterion in terms of
turbulence layer correction. This deficiency results in a significant
gap in understanding the effectiveness of GLAO correction at different
heights of the turbulence layer, thereby hindering the optimization of
GLAO system performance. To bridge this gap, this Letter introduces a
new, to the best of our knowledge, performance criterion for GLAO,
termed layer correction efficiency (LCE). This criterion is formulated
to quantify the effective compensation of the GLAO system for a
specific altitude layer of turbulence, providing support for the
further enhancement of GLAO performance. The simulation results
indicate that the LCE has high applicability in GLAO performance
analysis.
Funder
Youth Innovation Promotion Association of
the Chinese Academy of Sciences
National Natural Science Foundation of
China