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| 引用本文： | 涂锐,张勤,黄观文.??????????λ??????????????о?[J].大地测量与地球动力学,2010,30(2):99-103. |
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| 作者姓名： | 涂锐 张勤 黄观文 |
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| 作者单位： | 长安大学地质工程与测绘学院,西安,710054 |
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| 基金项目： | 国家自然科学基金，国家863计划项目 |
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| 摘 要： | ??????????λ??????ò????亯?????????????????????н???????????????????????????????????????????????IGS?????????????????????浥??????Klobuchar???????????????????????????????÷?????????????Ч???
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| 关 键 词： | ??????????λ ???????? ?????? ??亯?? ???????? |
ON IONOSPHERIC DELAY PROCESSING METHODS FOR SINGLE FREQUENCY PRECISE POINT POSITIONING |
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| Tu Rui,Zhang Qin,Huang Guanwen.ON IONOSPHERIC DELAY PROCESSING METHODS FOR SINGLE FREQUENCY PRECISE POINT POSITIONING[J].Journal of Geodesy and Geodynamics,2010,30(2):99-103. |
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| Authors: | Tu Rui Zhang Qin Huang Guanwen |
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| Institution: | College of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054 |
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| Abstract: | In single frequency precise point positioning, ionospheric delay is one of the most important factors impacting the positioning accuracy.Because of the instability of the ionosphere and the fuzziness of the research of physical properties, the positioning accuracy is seriously limited when using the precision limited model for the correction. In order to eliminate the ionosphere error, it is proposed to introduce ionosphere parameter for real-time ionospheric delay estimation by applying different mapping functions. Through the calculation of measurement data from the IGS tracking station and the comparison among the results from the single model, Klobuchar model and the grid ionosphere model, the feasibility and effectiveness of the new method are verified.In the experiments, different mapping functions and the ionosphere parameters are selected and some significant conclusions are drawn. |
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| Keywords: | single frequency precise point positioning ionospheric delay model correction mapping function parameter estimation |
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