Investigation mode effect on aberration correction of stars images

Aberration resulted from atmosphere turbulence in imaging system leads to decrease the resolution of system and finally the decrease of extended objects' image's quality. By simulation the mode correction on the random phase planes through the beam emission in turbulent atmosphere, the results of the Point Spread Function of the incoherent beams would be increased through the turbulent environment. In this method, the mode correction was done by using the Zernike Polynomials. The mode correction would lead to aberrations' correction of the random phase planes and because of that the application of adaptive optics imaging system has been improved. The stars' images which were supplied by an 3×3 array CCD camera with 11 mega pixels resolution in the visible and near infrared detection range, 33˚×43˚field of view, the detection power with magnitude greater than 1, the angle resolution 30334˚ and the focal distance 131 mm (F# =2) have been developed. The results show that the correction with Zernike modes effectively causes to increase the stars' image quality and the optimum performance of adaptive optics system.

کلیدواژه ها:

mode effect ، aberration ، Zernike