自适应光学系统对大气湍流补偿的有效性分析
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摘要: 从伺服控制系统的角度分析了自适应光学系统的闭环噪声、大气湍流引起的误差以及系统的总体误码差，并在此基础上对自适应光学系统的有效性、系统的最佳带宽选取及系统的极限工作能力进行了分析，对已经建立的2.16米望远镜红外自适应光学系统给出了分析结果曲线。Abstract: This paper analyses the closed –loop noise, the error caused by turbulence and the total error of adaptive optics system in terms with servo control loop. Based on the total error, the effectiveness, the optimal closed –loop bandwidth selection and the limited capability of adaptive optics system are also analysed. Furthermore, the analytic result cuves of a practical system, the infrared adaptive optics system at 2.16m telescope, are presented in this paper.
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Key words:
- adaptive optics /
- atmosphere turbulence /
- noise /
- wavefront sensor /
- shearing interferometer
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