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| 高精度的连续电离层延迟建模研究 | |
| 引用本文： | 范国清, 王威, 郗晓宁, 魏立栋. 高精度的连续电离层延迟建模研究[J]. 空间科学学报, 2009, 29(2): 188-194. doi: 10.11728/cjss2009.02.188 |
| 作者姓名： | 范国清 王威 郗晓宁 魏立栋 |
| 作者单位： | 国防科学技术大学机电工程与自动化学院, 长沙410073 |
| 摘 要： | 在多项式电离层模型确定过程中, 针对实测数据出现空白区域的问题, 提出了以GIM 数据作为背景场, 联合实测数据进行多项式电离层模型确定的方法, 分析了两种数据的权重, 建立了相应的数学模型; 另外对模型在时段间的连续性问题, 提出了利用相邻两组系数进行时间加权计算电离层延迟的平滑方法; 最后通过算例验证了建模和平滑方法的有效性. |
| 关 键 词： | VTEC GIM 权重 连续性 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
Study of High Precision and Continuous Ionosphere Model Determination |
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| Fan Guoqing, Wang Wei, Xi Xiaoning, Wei Lidong. Study of High Precision and Continuous Ionosphere Model Determination[J]. Chinese Journal of Space Science, 2009, 29(2): 188-194. doi: 10.11728/cjss2009.02.188 | |
| Authors: | FAN Guoqing WANG Wei XI Xiaoning WEI Lidong |
| Affiliation: | College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha410073 |
| Abstract: | This paper presents a new idea to determine polynomial ionosphere model with the circumstance that lacking of real observation data in special region.Besides real observation data, grid data calculated by global ionosphere model has been used as a background.The weight of two kinds of data has been discussed,and then mathematical model has been established.Secondly, the model continuity between two segments have been discussed,and then a smoothing method to calculate ionosphere delay has been studied,which ... |
| Keywords: | VTEC GIM |
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