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几种VTEC模型提取的GPS硬件组合延迟偏差比较
引用本文:李秀海,杜国明,张玉娟,曹先革,张为成,司海燕,赵晓明.几种VTEC模型提取的GPS硬件组合延迟偏差比较[J].黑龙江工程学院学报,2013(4):5-8.
作者姓名:李秀海  杜国明  张玉娟  曹先革  张为成  司海燕  赵晓明
作者单位:[1]黑龙江工程学院测绘工程学院,黑龙江哈尔滨150050 [2]辽宁省鞍钢大孤山铁矿采矿车间,辽宁鞍山114046
基金项目:黑龙江省自然基金资助项目(G20n03);黑龙江省教育厅资助项目(12511465);黑龙江工程学院博士基金资助项目(2011BJ03)
摘    要:介绍GPS硬件组合延迟偏差概念及几种电离层竖向总电子含量VTEC模型,基于哈尔滨市连续运行参考站CORS网络的GPS双频观测数据进行建模,研究结果表明:不同模型的建模效果及提取的硬件组合延迟偏差存在差异;随着模型阶数的增加,拟合残差减小,则提取的GPS硬件延迟偏差较干净,建模效果较好;不同基站的模型提取的GPS硬件延迟偏差具有不同的稳定性和较大的差异,有待进一步研究.

关 键 词:GPS硬件组合延迟偏差  电离层  竖向总电子含量  拟合模型

Comparative study on hardware combined delay bias extracted by VTEC models
LI Xiu-hai,DU Guo-ming,ZHANG Yu-juan,CAO Xian-ge,ZHANG Wei-cheng,SI Hai-yan,ZHAO Xiao-ming.Comparative study on hardware combined delay bias extracted by VTEC models[J].Journal of Heilongjiang Institute of Technology,2013(4):5-8.
Authors:LI Xiu-hai  DU Guo-ming  ZHANG Yu-juan  CAO Xian-ge  ZHANG Wei-cheng  SI Hai-yan  ZHAO Xiao-ming
Affiliation:1. College of Surveying and Mapping Engineering, Heilongjiang Institute of Technology, Harbin 150050, China; 2. Anshan Dagushan Iron Mine Workshop, Anshan 114046,China)
Abstract:The hardware combined delay bias and some vertical total electron content(VTEC) model are introduced. Through modeling VTEC by Harbin CORS observations, results show that differences for the hardware combined delay bias extracted by different models exist in different models, different model's orders and different CORS sites. When model's orders increase, performance of modes are better and the hardware combined delay bias extracted by different models is reliable. The difference for hardware combined delay bias extracted by different base stations will be studied in the future work.
Keywords:GPS hardware combined delay bias~ ionosphere~ vertical total electron content~ fitting model  
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