局域精密大气建模及分析  

Regional Precision Atmosphere Modeling and Analysis

作　　者：陈镜渊 赵睿斌[2] 田宇[1] 翟建勇[1] CHEN Jingyuan;ZHAO Ruibin;TIAN Yu;ZHAI Jianyong

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068 [2]国家信息中心,北京100045

出　　处：《现代导航》2023年第2期111-116,共6页Modern Navigation

摘　　要：局域精密大气建模技术对精密单点实时动态定位(PPP-RTK)技术实现快速模糊度固定具有重要意义。以西安地区自建监测站的大气延迟数据作为数据源,使用线性拟合法作为建模方法,获取西安地区的大气延迟分布模型并对模型精度进行评估。结果表明,使用线性拟合法及区域测站大气延迟数据进行区域精密大气建模具有可行性;线性拟合法得到的区域大气模型对流层精度为7 mm,电离层精度为1.44 cm。The regional precision atmosphere modeling technology is of great significance to the fast ambiguity fixation of Precise Point Position Real-Time Kinematic(PPP-RTK)technology.The atmospheric delay data of the self-built monitoring station in Xi'an is used as the data source,and the linear fitting method is used as the modeling method to obtain the atmosphere delay in Xi'an and evaluate the accuracy of the model.The results show that it is feasible to use the linear fitting method and the atmosphere delay of regional stations to carry out regional precise atmosphere modeling;the accuracy of the regional atmosphere model obtained by the linear fitting method is 7 mm in the troposphere and 1.44 cm in the ionosphere.

关 键 词：电离层 对流层 大气模型 

分 类 号：TN967.1[电子电信—信号与信息处理]