27 July 2016 Comparison of LSST and DECam wavefront recovery algorithms
Author Affiliations +
Abstract
We make a detailed quantitative comparison of the wavefront recovery algorithms between those developed for Dark Energy Camera (DECam) and the Large Synoptic Survey Telescope (LSST). Samples used in this study include images of out of focus stars collected by the DECam at the Blanco 4-meter telescope and artificial simulated donut images. The data from DECam include wavefront images collected by the wavefront sensors and out-of-focus images where the entire DECam sensor array is used. For simulated images, we have used both the forward Fraunhofer diffraction and a LSST-like ZEMAX optical model where the images are convolved with Kolmogorov atmosphere. All samples are analyzed with the forward wavefront retrieval algorithm developed for DECam and the transport of intensity algorithm for LSST. Good quantitative agreement between results by the two implemented algorithms is observed.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bo Xin, Aaron Roodman, George Angeli, Chuck Claver, Sandrine Thomas, "Comparison of LSST and DECam wavefront recovery algorithms", Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99064J (27 July 2016); doi: 10.1117/12.2234456; https://doi.org/10.1117/12.2234456
PROCEEDINGS
10 PAGES


SHARE
Back to Top