27 July 2016 Correlation wavefront sensing for extended objects
Author Affiliations +
Correlation wavefront sensing for extended objects requires both reference images for cross-correlation and centroiding parameters for measuring the shift in the correlation image. We present a method for optimising centroiding parameters demonstrated on a center of mass measurement of the correlation images. The process can be entirely automated and offloaded out of the adaptive optics system into a separate pipeline and so not interfere with the adaptive optics system. This means the method is implemented entirely in software, so can be added to any existing adaptive optics system which employs correlation wavefront sensors.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew J. Townson, Matthew J. Townson, Gordon D. Love, Gordon D. Love, Aglaè Kellerer, Aglaè Kellerer, Christopher D. Saunter, Christopher D. Saunter, "Correlation wavefront sensing for extended objects", Proc. SPIE 9909, Adaptive Optics Systems V, 99096Q (27 July 2016); doi: 10.1117/12.2234415; https://doi.org/10.1117/12.2234415

Back to Top