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The speckle-interferometric images modelling of artificial Earth satellites in problems of near-Earth astronomy
Open Astronomy ( IF 0.5 ) Pub Date : 2018-07-01 , DOI: 10.1515/astro-2018-0020
Vladimir P. Aleshin , Eugene A. Grishin , Oleg A. Ivlev , Dmitry D. Novgorodtsev , Victor D. Shargorodsky

Abstract The article represents the results of efficiency estimation for perspective observation facilities of near-Earth astronomy in terms of the AES (artificial Earth’s satellite) optical images obtaining and quality. A mathematical method for modeling optical images based on the induced virtual environment is proposed . A speckle interferometric image registration scheme and bispectral processing are reviewed. Upon modelling, the real speckle interferometric images of stars have been used as scattering functions; the AES orbits and geometry have been set in reliance on the real AES orbits and 3D-shapes. Additionally, photon and readout noises have been modelled. A large set of different variants of the AES orbits and 3D-shapes is reviewed.Anon-linear distortion problem is analyzed. The modelling has been performed under various atmosphere turbulence conditions (2”, 4”). The following characteristics have been estimated: number of frames to accumulate depending on the AES orbit and shape, noise intensity, type and parameters of bispectral processing, energy characteristics.

中文翻译:

近地天文问题中人造地球卫星散斑干涉图像建模

摘要 文章从AES(人造地球卫星)光学图像的获取和质量方面,阐述了近地天文透视观测设备效率估算的结果。提出了一种基于诱导虚拟环境的光学图像建模数学方法。回顾了散斑干涉图像配准方案和双光谱处理。建模时,使用恒星的真实散斑干涉图像作为散射函数;AES 轨道和几何形状是根据真实的 AES 轨道和 3D 形状设置的。此外,还对光子和读出噪声进行了建模。AES 轨道和 3D 形状的大量不同变体进行了审查。分析了非线性失真问题。建模是在各种大气湍流条件(2”、4”)下进行的。估计了以下特性:根据 AES 轨道和形状、噪声强度、双谱处理的类型和参数、能量特性累积的帧数。
更新日期:2018-07-01
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