| 自适应光学系统时间带宽和空间带宽的匹配 |
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| 引用本文： | 张德良 姜文汉. 自适应光学系统时间带宽和空间带宽的匹配[J]. 光电工程, 1998, 25(4): 13-21 |
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| 作者姓名： | 张德良 姜文汉 |
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| 作者单位： | 中国科学院光电技术研究所 |
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| 摘 要： | 自适应光学系统存在的时间带宽和空间带宽。为了有效地利用自适应光学系统的系统资源，必须使这两种带宽匹配。本文通过经系统校正后的剩余波前扰动相位的均方差与系统时间带宽和空间带宽的关系，研究了在不同条件下系统时间带宽和空间带宽的匹配问题。
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| 关 键 词： | 自适应光学 空间带宽 时间带宽 带宽匹配 |
Matching Between Temporal Bandwidth and Spatial Bandwidth of an Adaptive Optics System |
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| Zhang Deliang,Jiang Wenhan. Matching Between Temporal Bandwidth and Spatial Bandwidth of an Adaptive Optics System[J]. Opto-Electronic Engineering, 1998, 25(4): 13-21 |
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| Authors: | Zhang Deliang Jiang Wenhan |
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| Abstract: | An adaptive optics system has temporal bandwidth and spatial bandwidth.In order to effectively use the performances of the adaptive optics system,the above two bandwidths must be matched.The matching between the temporal bandwidth and spatial bandwidth of an adaptive optics system under the different conditions is investigated by means of the relations between the mean square deviation of the residual wavefront disturbance phase corrected by the system and the temporal spatial bandwidths of the system.The analysis results show that under the conditions of a constant system time delay,detecting noise level and atmosphere,an adaptive optics system has an optimal temporal bandwidth and spatial bandwidth. |
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| Keywords: | Adaptive optical systems Spatial bandwidth Temporal bandwidth Bandwidth matching Atmospheric trubulence. |
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