摘要
针对武汉地区GPS气象网进行了两方面的研究,首先是武汉地区GPS气象网的水汽含量的可靠性研究,将GPS水汽含量与无线电探空数据比较,得到两者差值的均方根为4.64 mm,相关系数为0.951;其次是独立区域GPS网的对流层延迟研究.通过3个网外辅助站的对流层延迟与无网外辅助站的对流层延迟的比较,经过线性回归分析,推导了无网外辅助站对流层延迟的修正模型,其精度可以达到4.24 cm.该模型为无网外辅助站对流层延迟的解算提供了一种新的方法,可以减少网络维持的费用和GPS解算对流层天顶延迟的时间.
There were two applications about the GPS meteorology network in Wuhan region. Firstly it was the reliable research of precipitable water vapor （PWV） of the GPS meteorology network in Wuhan region. With the comparison of GPS precipitable water vapor and the data of radiosonde, the root mean square was 4. 64 mm and the correlative coefficient was 0. 951. Secondly it was the study of the Zenith Tropospheric Delay （ZTD） of independent regional GPS network. With the comparison between ZTD of three auxiliary stations and ZTD of none auxiliary stations, it analyzed the two ZTD with the method of linearity regression and concluded the modify model of ZTD with none auxiliary stations, which the precision amounts to 4. 24 cm and can be used to GPS meteorology. With the modify model of ZTD we can apply a new method for ZTD calculation of none auxiliary stations which can decrease the fee of the network and calculated time of GPS ZTD.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2006年第6期781-784,共4页
Journal of China Coal Society
基金
国家自然科学基金资助项目(40574009)
中国科学院百人计划资助项目
关键词
连续运行卫星定位服务系统
水汽含量
对流层延迟
无线电探空
GPS continuous operational reference system
delay
radiosonde precipitable water vapor （PWV）
zenith tropospheric
