GPS测量的对流层误差.pdfVIP

·1 · ( ) 地矿测绘 　　2004 ,20 2 :1～3 CN 53 - 1124/ TD 　ISSN 1007 - 9394 Surveying and Mapping of Geology and Mineral Resources GPS 测量的对流层误差 1 2 谢世杰 ,潘宝玉 ( 1. 总参测绘局 ,北京 　100088 ;2. 山东省地质测绘院 ,山东 济南 　250011) 　　摘要 :论述了对流层时延的特性及其对 GPS 定位测量影响的大小。经研究认为 ,对流层时延误差主要影响高差精度 ;估算对流层效应的有效方 法是首先在每点上估算天顶时延 ,然后按每个时段取平均值或利用随机模型按每个观测历元逐一估算 ; 对流层天顶时延同高度角密切相关 ; 使用 WVR 能精确测定对流层时延误差。 关键词 : GPS;对流层 ;时延 ( ) 中图分类号: P 2284 　　　文献标识码 : A 　　　文章编号 :1007 - 9394 2004 02 - 0001 - 03 Error of the Troposphere on GPS Measurements 1 2 XIE Shijie , PAN Baoyu ( 1. Surveying and Mapping Bureau of the Headquarters of the General Staff , Beijing 100088, China; 2. Shandong Institute of Surveying and Map ) ping of Geology , Jinan , Shandong 250011 , China Abstract :The authors introduce the nature of troposphere delay effect on GPS positioning , via research , the authors con sider that troposphere delay error affects mainly height difference precision. The effective methods evaluating troposphere effect are as follows : getting average value of each period of time at each point , or each observation epoch estimating one using one by means of random model. Troposphere vertex delay is osculation interrelation with angle of altitude ; Troposphere delay error could be accurately d