对流层大气折射率剖面模型研究  

Study on Tropospheric Atmosphere Refractive Index Profile Model

作　　者：杨明珊[1] 周慧妍 刘璐 杜晓燕 Yang Mingshan;Zhou Huiyan;Liu Lu;Du Xiaoyan(College of Information Engineering,Zhengzhou University,Zhengzhou,Henan 450001,China)

机构地区：[1]郑州大学信息工程学院,河南郑州450001

出　　处：《激光与光电子学进展》2022年第7期43-48,共6页Laser & Optoelectronics Progress

摘　　要：基于中国地区11个IGS观测站的对流层天顶延迟和气象环境等实测数据,分析了国内外常用的三种对流层折射率剖面模型的预测精度,重点研究了三种模型在高海拔地区的适用性和随季节变化的适用性。结果表明:在高海拔地区,指数模型和分段模型精度较高,Hopfield模型在除高海拔外的地区,表现出更大的优势;总体来看,分段模型和Hopfield模型的精度在春、冬季较高,夏、秋季较差,指数模型精度与季节关系不大。该结论对于对流层折射误差修正模型的应用研究具有重要参考价值。Herein,the prediction accuracy of three tropospheric refractive index profile models commonly used at home and abroad was analyzed using the measured data of the tropospheric zenith delay and meteorological environment obtained from 11 international global positioning system service stations in China.Moreover,the applicability of the models was evaluated in high altitude areas and with seasonal changes.Results show that the exponential and segmented models achieve a higher accuracy at high altitude areas,while the Hopfield model shows greater advantages in areas other than high altitudes.Generally,the accuracy of the segmented and Hopfield models is higher in spring and winter and lower in summer and autumn.The accuracy of the exponential model shows a negligible relation with the season.The findings of this study have important reference values for the application research of the tropospheric refraction error correction model.

关 键 词：大气光学 折射率剖面模型 天顶延迟 射线描迹法 折射误差修正 高海拔地区 

分 类 号：TN011.3[电子电信—物理电子学]