| ����GPS˫Ƶ�ز���λ����Ԫ��������VTEC |
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| 引用本文： | 林剑,吴云,周义炎,施顺英,邢乐林. ����GPS˫Ƶ�ز���λ����Ԫ��������VTEC[J]. 大地测量与地球动力学, 2007, 27(5): 68-71 |
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| 作者姓名： | 林剑 吴云 周义炎 施顺英 邢乐林 |
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| 作者单位： | 1. 中国地震局地震研究所,武汉,430071;地壳运动与地球观测实验室,武汉,430071;武汉大学测绘学院,武汉,430079
2. 中国地震局地震研究所,武汉,430071;地壳运动与地球观测实验室,武汉,430071 |
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| 基金项目： | 国家高技术研究发展计划(2007AA12Z169)，地震科学联合基金“地基与天基GPS监测震前电离层特征的研究”(106006)，中国地震局地震研究所所长基金“GPS非差精密单点定位方法的研究和应用”(IS200726014) |
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| 摘 要： | ?????????μ?????????????????????vertical total electron content??VTEC????????,???????????????????????????????VTEC?????????????????????????VTEC??IGS??International GNSS Service??????VTEC?????仯??????￡????????????????????????????????γ???仯???ɡ?
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| 关 键 词： | ????????????(VTEC) ????? ????????? ???? ???????? |
| 文章编号： | 1671-5942（2007）05-0068-04 |
| 修稿时间： | 2007-05-09 |
CALCULATION OF IONOSPHERIC VTEC BY USING SINGLE EPOCH GPS DUAL FREQUENCY CARRIER-PHASE |
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| Lin Jian,Wu Yun,Zhou Yiyan,Shi Shunying,Xing Lelin. CALCULATION OF IONOSPHERIC VTEC BY USING SINGLE EPOCH GPS DUAL FREQUENCY CARRIER-PHASE[J]. Journal of Geodesy and Geodynamics, 2007, 27(5): 68-71 |
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| Authors: | Lin Jian Wu Yun Zhou Yiyan Shi Shunying Xing Lelin |
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| Abstract: | A new calculation method of VTEC(Vertical Total Electron Content) of the vertical space above fiducial station is presented, in which the single integer ambiguity and dual frequency observations are directly used to calculate VTEC. The result shows that the change tendency of the calculated VTEC is consistent with the provided data by IGS(International GNSS Service),and its inner precision is so good that can reflect the ionospheric activity in some extent. |
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| Keywords: | VTEC(Vertical Total Electron Content) single epoch integer ambiguity cycle slips inner precision |
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