哈特曼传感器对湍流畸变波前的泽尼克模式复原误差
Zernike modal wavefront reconstruction error of Hartmann sensor on measuring the atmosphere disturbed wavefront
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摘要: 分析了应用哈特曼传感器测量大气湍流畸变波前时，哈特曼传感器的泽尼克模式复原误差与子孔径划分形式、泽尼克模式复原阶数等的关系，给出了科尔莫哥洛夫湍流下计算哈特曼传感器模式复原误差的公式。对比分析了8×8子孔径划分和32×32子孔径划分的两个哈特曼传感器在实际大气湍流中同步测量的实验结果。Abstract: The Zernike modal wavefront reconstruction error of Hartmann sensor on measuring the atmospheric disturbed wavefront analyzed in this paper. It’s shown that the wavefront reconstruction error is concerned with sub-aperture configuration type and the total Zernike mode number used in wavefront reconstruction algorithm. Experiential formulas to calculate the wavefront reconstruction error of a Hartmann sensor in Kolmogorov turbulence are also deduced. The experimenal data are analyzed and compared between two Hartmann sensors with 8x8 and 32x32 sub-apertures configuration respectively.
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