首页|仿生偏振光罗盘太阳位置检测方法

仿生偏振光罗盘太阳位置检测方法

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  • 国家科技期刊平台
  • NETL
  • NSTL
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针对偏振光导航对天空中特征点精确位置信息的需求,提出一种基于全天域偏振模式成像系统对太阳位置进行精确检测的方法.与传统的基于光斑的太阳位置检测方法相比,该方法利用大气中固有的偏振信息完成对太阳位置的精确测量,具有检测方法简单、精度高且适用范围广等特点.搭建的光学采集系统由三个微小型的大视场摄像头模组和偏振片构成,使得结构更加紧凑,体积更小,高度更低.从原理出发,仿真分析太阳位置求解算法,采用搭建的光学采集系统对本算法在 3种天气(晴天、遮挡、气溶胶)环境下进行验证.结果显示:当天气晴朗时,在同一天不同时刻,测量的太阳高度角和方位角的精度分别为 0.024°和 0.03°;当太阳被高层建筑物遮挡时,太阳的高度角和方位角的测量精度分别为 0.08°和 0.05°;当太阳被树木的枝叶遮挡时,太阳的高度角和方位角的测量精度分别为 0.3°和 0.1°.研究发现当气溶胶的浓度超过一定量时就会破坏偏振光的Rayleigh分布模式,进而会影响太阳位置的检测精度.实验结果表明,这种新型的检测方法不仅能够满足偏振光导航对太阳位置精确信息的需求,还能为喜欢探索宇宙奥秘的爱好者提供一种新的探索思路.
Detection method of solar position using a biomimetic polarized light compass
Aiming at the requirement of polarized light navigation for accurate position information of fea-ture points in the sky,an accurate detection method for the solar position of imaging system based on all sky polarization mode is proposed.Compared with the traditional detection method of the solar position based on spot,we use the inherent polarization information in the atmosphere to complete the accurate measurement of the solar position,which has the characteristics of simple,high accuracy and wide application range.The optical acquisition system consists of three micro large-field-of-view camera modules and polarizers,which makes the structure more compact,smaller and lower in height.Starting from the principle,the algorithm of solving the solar position is simulated first,and then the algorithm is verified in three weather environ-ments(sunny,occluded,and aerosol)using the optical acquisition system.It can be seen that when the weath-er is clear,the sun is detected at different times of the same day,and the accuracy of the measured sun's alti-tude and azimuth are 0.024°and 0.03°respectively;when the sun is blocked by high-rise buildings,the ac-curacy of the measured sun's altitude and azimuth are 0.08° and 0.05°;when the sun is blocked by the branches and leaves of trees,the accuracy of the measured sun's altitude and azimuth are 0.3°and 0.1° re-spectively.Only when the aerosol concentration exceeds a certain amount will the Rayleigh distribution mode of polarized light be destroyed,which will affect the detection accuracy of solar position.The experi-mental results show that this new detection method can not only meet the needs of polarized light navigation for the solar position,but also provide a new way of exploration for fans who like to explore the mysteries of the universe.

atmospheric opticsatmospheric polarization modesolar positionoptical CCD

杨江涛、王明凯、刘思拓、梁磊、刘志、郭越

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太原科技大学电子信息工程学院,山西太原 030024

太原科技大学先进控制与装备智能化山西省重点实验室,山西太原 030024

大气光学 大气偏振模式 太阳空间位置 光学CCD

国家自然科学基金山西省基础研究计划面上项目太原科技大学研究生教育改革研究项目山西省科技创新人才团队项目太原科技大学研究生创新项目山西省科研实践创新类项目

61905172202303021211169JG2022009202304051001035SY20220182023KY649

2024

10.37188/CO.2023-0192

中国光学
中国科学院长春光学 精密机械与物理研究所 中国光学学会

中国光学

CSTPCD北大核心
影响因子：2.02
ISSN：2095-1531
年,卷(期)：2024.17(3)
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