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首页> 外文期刊>Applied optics >Optical distortion evaluation of an aerodynamically heated window, based on the higher-order singular value decomposition with the influence of elasto-optical effect excluded
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Optical distortion evaluation of an aerodynamically heated window, based on the higher-order singular value decomposition with the influence of elasto-optical effect excluded

机译：基于高阶奇异值分解并排除弹性光学效应的影响，对空气动力加热窗的光学畸变进行评估

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摘要

The higher-order singular value decomposition (HOSVD) was used to reconstruct the three-dimensional (3D) refractive index field of an aerodynamically heated window. The numerical 3D optical distortion was evaluated for both the reconstructed and the exact refractive index fields of the window, excluding the influence of the elasto-optical effect. The method based on the HOSVD truncation was shown to reduce the refractive index information required to capture the major optical distortion of the window. The refractive index information was reduced by reconstructing the refractive index field of the window using the truncated n-mode singular matrices. The method can also be used to evaluate the optical distortion of the window.
机译：高阶奇异值分解（HOSVD）用于重构空气动力学加热窗口的三维（3D）折射率场。对于窗口的重建和精确折射率场，均评估了数值3D光学畸变，不包括弹性光学效应的影响。结果表明，基于HOSVD截断的方法可减少捕获窗口的主要光学畸变所需的折射率信息。通过使用截短的n型奇异矩阵重建窗口的折射率场，可以减少折射率信息。该方法也可以用于评估窗户的光学畸变。

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