Obtaining the Sun's Spatial Position Based on Atmospheric Polarized Light

Abstract

The present invention relates to a technology for acquiring the solar space position, specifically a method for acquiring the solar space position based on the distribution mode of atmospheric polarized light. The sun is determined as a spatial feature point by analyzing the atmospheric polarization mode, and the three-dimensional atmospheric polarization mode is established. On the basis of the spatial coordinate system, the polarized light detection sensor array is used to obtain the finite point sampling information of the atmospheric polarization mode, and the theoretical model of the atmospheric polarization mode based on Rayleigh scattering theory is used to establish a system of equations containing the spatial position information of the sun, and the least square method combined with Gaussian The spatial position of the sun is obtained by solving the equation with Newton iterative method. The sun is a reliable spatial feature point in the polarization mode. The acquisition of its spatial position has broad application prospects in polarized light navigation, sun tracking and other fields.

Description

technical field [0001] The invention relates to a method for obtaining the solar space position, in particular to a method for solving the solar space position based on the atmospheric polarized light distribution mode, and has broad application prospects in the fields of solar energy utilization, polarized light navigation and the like. Background technique [0002] Facing the technical requirements of sun tracking in the field of solar energy utilization and measurement of spatial feature points in the field of polarized light navigation, based on the Rayleigh model describing the atmospheric polarization mode, the present invention proposes a method for obtaining the solar spatial position based on atmospheric polarized light. It has important application value in fields such as utilization and polarized light navigation. [0003] In the field of solar energy utilization, due to the characteristics of solar energy such as dispersion and instability, improving the efficien...

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Problems solved by technology

[0004] In the field of polarized light navigation, the existing research on polarized light navigation methods focuses on the acquisition of two-dimensional heading information of the carrier, which can only be aimed at the situation that the navigation carrier moves on the horizontal plane, and the actual carrier navigation information acquisition is in most cases. The situation is not limited to two-dimensional heading information, and in terms of anti-interference ability, since the symmetry of the sky polarization pattern is easily destroyed by the influence of clouds and other occlusions, the navigation method that uses the symmetry of the atmospheric polarization pattern still has major defects

There have been related researches on the application of polarized light three-dimensional space attitude calculation, the core of which is the determination of the position of spatial feature points. The optional feature points in the atmospheric polarization mode include the sun, neutral point and zenith point, among which the neutral point and zenith point None of them can provide effective dynamic reference position information. Therefore, it is a core issue in polarized light navigation theory to determine the spatial position of the sun using the atmospheric polarization distribution mode. Research

[0005] To sum up, in the field of solar energy utilization and polarized light navigation, there are many limitations and deficiencies in the existing technology, especially the change of environmental factors such as cloud cover has a great impact on the stable and accurate acquisition of the sun's spatial position, and this impact cannot be achieved. Effective elimination

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