Abstract Details
| Name: satya ranjan behera Affiliation: Indian Institute of Astrophysics Conference ID: ASI2015_501 Title : Performance analysis of wavefront compensation at various light intensity and noise level condition in an closed loop Adaptive Optics system Authors and Co-Authors : B. Raghavendra Prasad, IIA Abstract Type : Poster Abstract Category : Instrumentation and Techniques Abstract : For implementation of Adaptive Optics technique, a laboratory setup is essential to evaluate schemes and principles. Each and every component needs to be studied and evaluated experimentally in order to predict the performance of the Adaptive Optics system. The wavefront of the light is determined using wavefront sensor and reconstruction algorithms. This is compensated by using deformable mirror. In this paper, the results of study of reconstruction of wavefronts at various light intensity levels with noise like photon noise, background noise and readout noise is presented. Various centroiding methods like CoG, WCoG and cross correlation are compared with varying noise and light intensity levels. The input and output wavefront accuracy is measured at different intensity and noise levels. |