Statistics – Computation
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6523e..26j&link_type=abstract
Modeling, Signal Processing, and Control for Smart Structures 2007. Edited by Lindner, Douglas K.. Proceedings of the SPIE, Vol
Statistics
Computation
Scientific paper
The objective of this paper is to address one of the more difficult problems in astronomical Adaptive Optics (AO): on future Extremely Large Telescopes (ELT), the computing power required for the requisite number of actuators will exceed the computing power presently available. The PZT actuators for Deformable Mirrors (MD) have three axes: tilt, tip and piston. It is envisioned that these three axes can be controlled by adaptive wavelet filter banks. Adaptive echo cancellation will be applied to achieve wavefront correction in a manner analogous to that used to cancel telephone echoes. This approach will provide a viable alternative to those presently available and reduce the number of computations.
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