| 一种利用GNSS三频观测值计算绝对电离层TEC的方法 |
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| 引用本文： | 龚阳昭,蔡昌盛.一种利用GNSS三频观测值计算绝对电离层TEC的方法[J].大地测量与地球动力学,2017,37(2):205-208. |
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| 作者姓名： | 龚阳昭 蔡昌盛 |
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| 摘 要： | 利用GNSS 3个频率观测值两两组合计算获得电离层总电子含量（TEC）值，加入IGS提供的硬件延迟偏差产品对不同频率间的硬件延迟偏差进行改正。结果表明，经硬件延迟偏差改正后，不同双频组合获得的TEC偏差显著缩小。在此基础上，提出了一种合成最终TEC的方法。
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| 关 键 词： | GNSS 三频观测数据 TEC 硬件延迟 |
A Calculation Method of Ionospheric TEC Using Triple-Frequency GNSS Observations |
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| GONG Yangzhao,CAI Changsheng.A Calculation Method of Ionospheric TEC Using Triple-Frequency GNSS Observations[J].Journal of Geodesy and Geodynamics,2017,37(2):205-208. |
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| Authors: | GONG Yangzhao CAI Changsheng |
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| Abstract: | Triple-frequency GNSS observations with different frequency combinations are used to obtain ionospheric TEC. Corrections to hardware delay are made using the product provided by IGS. The results show that TEC offsets using observations of different frequency combinations are significantly reduced after applying IGS hardware delay corrections. Furthermore, a method for producing the final TEC is proposed. |
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| Keywords: | GNSS triple-frequency observations TEC hardware delay |
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