面向偏振光天文定位应用的偏振信息匹配滤波算法  

Celestial Polarization Matching Filtering Method for Polarized Light Positioning

作　　者：朱志飞[1] 杨江涛[1] 李涛[1] 王晨光[1] 刘文耀[1] 潘梓文 申冲[1] 唐军[1] ZHU Zhi- fei YANG Jiang- tao LI Tao W A N G Chen- guang L I U W e n - y a o PANZi - w e n S H E N Chong T A N G Jun(Key Laboratory of Electronic Test and Measurement, North University of China, Taiyuan 030051, P. R. China)

机构地区：[1]中北大学电子测试技术重点实验室,太原030051

出　　处：《科学技术与工程》2017年第14期148-153,共6页Science Technology and Engineering

基　　金：国家杰出青年科学基金(51225504);国家自然科学基金青年科学基金(61503347);国家自然科学基金(61603353)资助

摘　　要：大气偏振信息滤波处理是提高偏振光导航定位应用实效的基础和关键步骤。根据单次瑞利散射大气偏振模式,设计了与太阳投影点和观测点位置无关的方位模型转换算法;据此特征提出了一种全天域大气偏振分布数据滤波算法;并详细阐述了所提算法的基本步骤及流程。利用偏振成像系统同时观测全天域采样点大气偏振信息,对所提算法进行了实验验证。实验结果表明,所提算法对全天域偏振成像获得的大量离散样本点偏振数据,具有较好的滤波性能。Celestial polarization data filtering is a basis and critical step of improving the effect of polarizationpositioning. A m a p p i n g algorithm from single-scattering Rayleigh atmosphere to the solar azimuth model is designed. A filtering algoritlim based on the feature of n e w model and applied in aisly polarization information is proposed. Then basic steps of tiie proposed algoritiim are elaborated,and performance characImaging system can obtain sampling polarization data of all - sly observation directalgorithm is verified experimentally by using these data. Experimental results showthat the proposed algorithm hasbetter filtering performance in a great quantity of discrete sampling points under all-sky polarization datacircumstances.

关 键 词：Rayleigh散射 匹配滤波 偏振光定位 太阳位置 

分 类 号：P415.3[天文地球—大气科学及气象学]