Effects of reconstruction matrix and controller coefficients on performance of an adaptive optics system investigated by numerical simulation

Details Effects of reconstruction matrix and controller coefficients on performance of an adaptive optics system investigated by numerical simulation Effects of reconstruction matrix and controller coefficients on performance of an adaptive optics system investigated by numerical simulation

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4926...81y&link_type=abstract

Proc. SPIE Vol. 4926, p. 81-91, Adaptive Optics and Applications II, Wenhan Jiang; Robert K. Tyson; Eds.

Physics

Optics

Scientific paper

Phase compensation effectiveness and long time period working stability are two most important performances of an adaptive optics (AO) system. Effects of reconstruction matrix and controller coefficients on these performances are investigated by means of a pure numerical simulation in this paper. A new modified reconstruction matrix is proposed and compared with other existing matrixes in practical application. It is shown that the recently proposed reconstruction matrix can produce better phase compensation results and much better long time period working stability in an AO system. Different reconstruction matrix can greatly affect the long time period working stability in a quite long time period, but a working instability can occur in a super-long time period. It is found that the controller coefficient a1equals1.00 is a marginally stable (sub- stable) condition for an AO system. When a1<1, the long time period working stability of an AO system is much approved.

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