GPS信号对流层延迟改正新模型研究

¹ 西南交通大学测量系,成都市二环路北一段111号,610031² 山东省地震局,济南市文化东路20号,250014³ 武汉大学测绘学院,武汉市珞喻路129号,430079

基金项目: 国家自然科学基金资助项目(40271091);国家教育部优秀教师资助计划ADHH(2003109);国家教育部留学回国人员基金资助项目。

详细信息

New Model for Tropospheric Delay Estimation of GPS Signal

¹ Dept. of Surveying Engineering, Southwest Jiaotong University, 111 Erhuan Road, Chendu 610031, China ;² Earthquake Adminstration of Shandong Province, 20 East Wenhua Road, Jinan 250014, China ;³ School of Geodesy and Geomatics, Wuhan University,129 Luoyu Road,Wuhan 430079,China

Funds: 国家自然科学基金资助项目(40271091);国家教育部优秀教师资助计划ADHH(2003109);国家教育部留学回国人员基金资助项目。

摘要: 为削弱对流层对GPS精密定位的影响,从大气折射率入手将大气分为3层,建立了大气折射率模型,并导出了对流层天顶延迟模型。利用IGS跟踪站的实测数据进行了验证,实验证明了新模型的有效性。
- GPS /
- 对流层 /
- 大气折射率 /
- 改进的天顶延迟模型
Abstract: A new tropospheric zenith delay model is proposed based on a 3-layer partition of atmosphere and real observation data from regional GPS network are used for the performance testing. It is shown that the accuracy of tropospheric delay estimation are better in CHDU, KUNM and LAHS stations using the proposed model than Hopfield and Saastamoinon models.
- GPS /
- troposphere /
- refraction index /
- improved tropospheric zenith delay model