Abstract
Confronted with the requirement of the high resolution earth-observation system of high-speed aircraft working in near-space environment,and the imaging system with dynamic optical windows is likely to suffer from extreme dynamic aberration,complex imaging quality compensators and bad real-time character,the traditional imaging quality compensation was improved and the adaptive optical(AO)technique was explored as a novel way of solving the problems.The image sharping function optimization closed-loop adaptive wavefront correction algorithm was used.Simulations results indicate that the correction method can make the PV(peak to valley)waves of the Zernike aberration term in reduce to about 17.5%and the RMS spot radius to about 10.61%less than before correction the system which has60°FOR(field of regard).By correction with this method,the residual aberration is much less than the baseline system and the imaging performance can be almost diffraction limited.
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