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用Hartmann-Shack波前传感器测量大气湍流特征
Measurement of Atmospheric Turbulence Characteristics by Hartmann-Shack Wavefront Sensor
【摘要】 建立了一个小型Hartmann-Shack波前传感器来测量大气扰动特征。通过单子孔径的象移和许多间距不同的子孔径之间的象移差测得的到达角起伏的统计值来计算出Fried参数r0。本文推导了采用不同孔径参数的实验结果,以及波前斜率的功率谱密度。
【Abstract】 We built a small Hartmann-Shack wavefront sensor for measuring atmospheric disturbance characteristics.The Fried parameter ro is calculated through the image moving of single subaperture and the stastatistic values of the arriving angles measured by the image moving differences of many subapertures with different gaps.The experimental results of the different aperture parameters and the power spectral density of wavefront slope are derived in the paper.
【关键词】 自适应光学;
大气测量;
大气湍流;
大气扰动;
波前探测器;
【Key words】 Adaptive optics; Atmospheric measurement; Atmospheric turbulence; Wave-front sensors; Atmospheric disturbance;
【Key words】 Adaptive optics; Atmospheric measurement; Atmospheric turbulence; Wave-front sensors; Atmospheric disturbance;
【基金】 国家高技术研究计划资助
- 【文献出处】 光电工程 ,OPTO-ELECTRONIC ENGINEERING , 编辑部邮箱 ,1995年02期
- 【分类号】TH765.84
- 【被引频次】8
- 【下载频次】176