基于瑞利散射的大气偏振模式检测与模型重建  

Detection and Model Reconstruction of Atmospheric Polarization Pattern Based on Rayleigh Scattering Theory

作　　者：王晨光[1,2] 唐军[1,3] 杨江涛[1,3] 张楠[1,3] 李大林[1,3] 刘俊[1,3] 向长波[1,4] 

机构地区：[1]中北大学电子测试技术重点实验室,山西太原030051 [2]中北大学信息与通信工程学院,山西太原030051 [3]中北大学仪器与电子学院,山西太原030051 [4]中国电子科技集团第四十一研究所,山东青岛266555

出　　处：《中北大学学报（自然科学版）》2015年第5期570-576,共7页Journal of North University of China(Natural Science Edition)

基　　金：国家973计划项目子课题(2012CB723404);国家自然科学基金杰出青年基金(51225504)和面上项目(61171056)

摘　　要：针对全天域大气偏振模式导航信息高精度获取需求,搭建了一种基于偏振分析仪、水平转台、高度调节台等模块的大气偏振模式检测系统,实现了全天域大气偏振模式扫描检测;利用Matlab软件对实测数据进行了数据处理分析,结合瑞利散射模型实现了大气偏振二维、三维模式重建.实验结果表明,偏振角测量误差小于0.5°的实测偏振信息为92%,偏振度测量误差小于0.5的实测偏振信息为87%,与理论瑞利散射模型基本一致,实测大气偏振模式信息准确可靠,可为后续开展偏振光导航应用与算法研究奠定基础.Focusing on the demand about high-precision obtaining all-sky polarization pattern information,a measuring system of atmosphere polarization pattern based on polarization analyzer,the level turntable and the height regulating station was constructed,which achieves the all-sky polarization pattern by scanning.Using the Matlab to processing and analysis the measured data,combining with the Rayleigh scattering model to reconstruct the 2and 3-dimensional atmospheric polarization pattern.The result indicates that the measured polarizing information is 92%,which measure error of polarizing angle is less than 0.5,and the measured polarizing information is 87%,which measure error of polarizing degree is less than 0.5.It is basically consistent with the theoretical Rayleigh scattering model and the measured information of the atmospheric polarization is accurate.Then we can lay the foundation for the subsequent application and algorithm of polarized navigation.

关 键 词：瑞利散射 偏振光导航 大气偏振模式 模型重建 偏振角 偏振度 

分 类 号：P401[天文地球—大气物理学与大气环境] O241.2[天文地球—大气科学及气象学]