大气湍流各向异性分析

Jianzhu Zhang, Feizhou Zhang
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引用次数: 0

摘要

湍流的影响会降低空间物体的成像质量或激光在大气中的传播特性。自适应光学可以用来校正大气湍流像差,但大气湍流的各向异性效应是不可避免的。采用特殊的光谱滤波方法,对不同场景下不同类型的各向异性进行了系统建模,得到了描述不同类型各向异性方差及其Zernike模型分量的公式。根据高压湍流轮廓,分析了不同类型各向异性方差的Zernike模型分量的特征。
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Analysis of atmospheric turbulence anisoplanatism
The image quality of space object or the Laser propagation characteristics in atmosphere will be degraded by the effect of turbulence. Adaptive optics can be used to correct atmospheric turbulent aberration, but the anisoplanatic effect of atmospheric turbulence is unavoidable. Adopting the special spectral filtering method, different type of anisoplanatism in different scene are systemically modelled, and the formulae that describing different type of anisoplanatic variance and their Zernike model components are obtained. According to HV turbulent outline, the characteristics of Zernike model components of different type of anisoplanatic variance are analyzed.
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