大气偏振模式特征及其在自主导航中的应用  

Characteristics of Atmospheric Polarization Pattern and Its Application in Autonomous Navigation

作　　者：范之国[1] 徐超[1] 吴川[1] 高隽[1] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009

出　　处：《现代防御技术》2017年第3期1-7,共7页Modern Defence Technology

基　　金：国家自然科学基金(61571175;61571177)

摘　　要：针对复杂变化的大气环境,如何实现大气偏振模式的建模与时空变化规律的精确表征,是大气偏振模式相关研究的难点和热点。针对大气偏振模式在偏振光自主导航领域中的应用,通过分析大气偏振模式宏观变化规律,甄选可以作为导航参照的显著特征,详细介绍了大气偏振模式"∞"字形特征的建模方法,阐明了"∞"字形特征为偏振光导航提供航向信息的可行性,为偏振光导航信息的获取提供了一种切实可行的方法。For the complex and changing atmospheric environment, how to realize the modeling of at- mospheric polarization pattern and the accurate characterization of the spatial and temporal variation is a difficult and hot topic in the study of atmospheric polarization pattern. In view of the application of the at- mospheric polarization pattern in the field of polarized light autonomous navigation, through the analysis of the law of the atmospheric polarization pattern macroscopic variation, and by selecting the significant features used as navigation reference, the modeling method of the ＂ ∞ ＂ shape distribution features of the atmospheric polarization pattern is introduced, the feasibility of the ＂ w ＂ shape distribution features of the polarized light for providing navigation information is illustrated as well as a new method for obtaining the polarized light navigation information is provided.

关 键 词：偏振光导航 大气偏振模式 自主导航 特征建模 规律表征 航向信息 

分 类 号：O436.3[机械工程—光学工程] V249.3[理学—光学]