基于大气偏振光学的太阳跟踪方法

发布时间：2018-02-28 09:49

本文关键词： 太阳位置太阳跟踪偏振模式　出处：《科学技术与工程》2016年29期 　论文类型：期刊论文

【摘要】：太阳位置信息不仅在太阳能领域应用广泛,而且在偏振光导航领域中被作为重要的空间特征,为偏振光导航提供信息。在研究大气偏振模式分布规律时,发现太阳位置与偏振模式存在着一定的对应关系;利用这一联系提出一种新的太阳跟踪方法:对偏振模式进行采样,得到各个采样点的偏振信息(偏振度和偏振角度)与太阳空间位置(高度角和方位角)之间的关系方程组。利用最小二乘法求得最优解并将其作为太阳位置。通过仿真实验验证了该方法的可行性,接着通过全天候和遮挡情况下的太阳跟踪实验进行了验证。实验表明用该方法求解得到的太阳高度角和方位角的平均误差在0.5°;并且不受空间位置和时间的限制,不存在误差积累,不受遮挡物对太阳遮挡的影响,体现出良好准确性和的环境适应性,可以有效地实现太阳空间位置确定和太阳跟踪。
[Abstract]:The position information of the sun is not only widely used in the field of solar energy, but also used as an important spatial feature in the field of polarized light navigation, which provides information for the navigation of polarized light. It is found that there is a certain correspondence between the position of the sun and the polarization mode, and a new solar tracking method is proposed, which is to sample the polarization mode. The equations of relation between the polarization information (degree of polarization and polarization angle) and the position of the sun (altitude angle and azimuth angle) are obtained. The optimal solution is obtained by using the least square method. The feasibility of the method is verified by over-simulation experiments. The results of the experiments show that the average error of the solar height and azimuth obtained by this method is 0.5 掳, and it is not limited by the space position and time. There is no accumulation of errors and no influence of the occlusion on the sun occlusion, which shows good accuracy and environmental adaptability. It can effectively determine the position of the sun in space and track the sun.
【作者单位】：电子测试技术重点实验室(中北大学);
【基金】：国家自然科学基金青年科学基金项目(61503347) 国家973前期子课题(2012CB723404)资助
【分类号】：P182.2

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