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国家自然科学基金(s10573035)

作品数:1 被引量:5H指数:1
发文基金:国家自然科学基金国家重点基础研究发展计划更多>>
相关领域:自动化与计算机技术更多>>

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Importance of tip sensing for active control system of 30-m RIT primary mirror被引量:5
2009年
The active control of 30-m ring interferometric telescope (RIT) needs edge sensing and tip sensing when its primary mirror is composed by trapezoid-shaped segments, and the imaging performance of the RIT is determined by the accuracy of these two detecting approaches. Considering the detecting accuracy available in current segmented telescope active control systems, the effect of these detecting approaches on the surface error of the RIT primary mirror is calculated from the point of error propagation. The corresponding effect on imaging performance (modulation transfer functions (MTFs) and point spread functions (PSFs) at several typical wavelengths) of the RIT primary mirror is also simulated. The results show that tip sensing is very important for increasing the active control quality of the RIT primary mirror under the present techniques.
戴懿纯刘忠金振宇
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