基于GPS非差技术近实时获取对流层延迟Near Real Time Acquisition of Tropospheric Delay Based on the GPS Un-differenced Technology
李黎,匡翠林,朱建军,陈永奇,龙四春,何原荣
摘要(Abstract)：
本文提出一种近实时获取高精度对流层延迟(Zenith Tropospheric Delay,ZTD)的方法。该方法基于全球GPS参考站网络的非差观测值数据和IGU预报产品(卫星轨道和ERP),使用GPS非差技术和卡尔曼滤波近实时估计各参考站的高精度ZTD。将该方法应用于香港GPS参考站网得到的ZTD与基于事后技术计算的ZTD进行比较后发现,两者的平均偏差均优于5mm,RMS均优于6mm。
关键词(KeyWords)： 近实时;对流层延迟;非差;水汽
基金项目(Foundation): 国家自然科学基金资助项目(40974007,41004012,41004002);; 中南大学前沿研究计划(2009QZZD002)
作者(Author): 李黎,匡翠林,朱建军,陈永奇,龙四春,何原荣
DOI: 10.16251/j.cnki.1009-2307.2012.02.029
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