| 区域电离层延迟的时空变化分析 |
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| 引用本文： | 何玉晶,杨力,徐周.区域电离层延迟的时空变化分析[J].海洋测绘,2006,26(1):19-21,28. |
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| 作者姓名： | 何玉晶 杨力 徐周 |
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| 作者单位： | 解放军信息工程大学,测绘学院,河南,郑州,450052 |
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| 摘 要： | GPS在差分导航、车载导航和RTK的应用中,精确修正电离层延迟是决定测量定位结果能否达到精度要求的重要因素。利用GPS接收机综合检定场的登封、洛阳、梅山、平顶山和西安5个基准站2002年3月23日的部分观测数据,利用双频组合技术研究分析了郑州及周边地区电离层延迟的时空变化及其时空相关性,并在此基础上讨论了区域差分的可行性和即将广泛应用于城市控制测量中的RTK技术的可行性。
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| 关 键 词： | 全球定位系统 电离层 电子含量 电离层穿透点 时空变化 |
| 文章编号： | 1671-3044（2006）01-0019-03 |
| 收稿时间： | 2005-09-08 |
| 修稿时间： | 2005-09-082005-11-14 |
Analysis of Area Ionospheric Delay in Spatial and Temporal Variations |
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| HE Yu-jing,YANG Li,XU Zhou.Analysis of Area Ionospheric Delay in Spatial and Temporal Variations[J].Hydrographic Surveying and Charting,2006,26(1):19-21,28. |
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| Authors: | HE Yu-jing YANG Li XU Zhou |
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| Institution: | Institute of Surveying and Mapping, Information Engineering University ,Zhengzhou ,Henan,450052 |
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| Abstract: | In the application of GPS in local differential positioning system,vehicle navigation and RTK,the accuracy of ionospheric delay correction is an important factor that influences the result whether or not meets the accuracy requirements of measuring and positioning.With the observational data in five observation stations of GPS receiver checking field on March 23,2003,and dual-frequency method, this paper analyses spatial and temporal variation of the ionospheric delay in the region of Zhengzhou and the around,and on the base of these results it discusses the feasibility of local diferential positioning system and the wide application of RTK method in city control measurement in future. |
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| Keywords: | global positioning system(GPS) ionosphere electron content ionosphere pierce point spatial and temporal variation |
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