On-sky tests of the CuReD and HWR fast wavefront reconstruction algorithms with CANARY
On-sky tests of the CuReD and HWR fast wavefront reconstruction algorithms with CANARY
复制标题
使用 CANARY 对 CuReD 和 HWR 快速波前重建算法进行空中测试
DOI:
10.1093/mnras/stv003
复制
发表时间:
2015
影响因子:
4.8
通讯作者:
Bitenc U
中科院分区:
文献类型:
--
作者:
Bitenc U
CuReD (Cumulative Reconstructor with domain Decomposition) and HWR (Hierarchical Wavefront Reconstructor) are novel wavefront reconstruction algorithms for the Shack–Hartmann wavefront sensor, used in the single-conjugate adaptive optics. For a high-order system they are much faster than the traditional matrix–vector-multiplication method. We have developed three methods for mapping the reconstructed phase into the deformable mirror actuator commands and have tested both reconstructors with the CANARY instrument. We find out that the CuReD reconstructor runs stably only if the feedback loop is operated as a leaky integrator, whereas HWR runs stably with the conventional integrator control. Using the CANARY telescope simulator we find that the Strehl ratio (SR) obtained with CuReD is slightly higher than that of the traditional least-squares estimator (LSE). We demonstrate that this is because the CuReD algorithm has a smoothing effect on the output wavefront. The SR of HWR is slightly lower than that of LSE. We have tested both reconstructors extensively on-sky. They perform well and CuReD achieves a similar SR as LSE. We compare the CANARY results with those from a computer simulation and find good agreement between the two.
登录
查看更多内容
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
M. Zhariy;A. Neubauer;M. Rosensteiner;R. Ramlau
通讯作者:
R. Ramlau
影响因子:
1.9
作者:
M. Rosensteiner
通讯作者:
M. Rosensteiner
影响因子:
1.9
作者:
Basden A
通讯作者:
Basden A
影响因子:
4.8
作者:
Osborn, J.;Guzman, D.;Rousset, G.
通讯作者:
Rousset, G.
DOI:
--
发表时间:
2005
期刊:
SPIE Optics + Photonics
影响因子:
--
作者:
C. Petit;J. Conan;C. Kulcsár;H. Raynaud;T. Fusco;J. Montri;F. Chemla;D. Rabaud
通讯作者:
D. Rabaud