| ????????????????????????????TEC????????о? |
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| 引用本文： | 巩岩,党亚民.????????????????????????????TEC????????о?[J].大地测量与地球动力学,2010,30(5):86-89. |
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| 作者姓名： | 巩岩 党亚民 |
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| 作者单位： | 1. 中国测绘科学研究院,北京,100039
2. 中国测绘科学研究院,北京,100039;山东科技大学,青岛,266500 |
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| 基金项目： | 国家高技术研究发展计划 |
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| 摘 要： | ??????????е??????????????????????????????????????????IGS????????TEC??????????????????????ò??????λ???30??40 ???50 ?????????з??????????????????????0.8 TECU???????????仯?????????￡????????????????????????????γ???й??
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| 关 键 词： | ????? TEC ??????? ??????? ??????? |
STUDY ON IONOSPHERIC TEC SHORT-TERM FORECASTS WITH EXTRAPOLATION METHOD BASED ON VARIANCE ANALYSIS OF PERIODICAL WAVE SUPERPOSITION |
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| Gong Yan,Dang Yamin.STUDY ON IONOSPHERIC TEC SHORT-TERM FORECASTS WITH EXTRAPOLATION METHOD BASED ON VARIANCE ANALYSIS OF PERIODICAL WAVE SUPERPOSITION[J].Journal of Geodesy and Geodynamics,2010,30(5):86-89. |
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| Authors: | Gong Yan Dang Yamin |
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| Institution: | 1)China Academy of Surveying and Mapping, Beijing 1000392)Shandong University of Science and Technology, Qingdao 26650 |
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| Abstract: | The statistics method, superposition analysis of periodical wave variance is applied innovatively to short term forecast of the ionospheric TEC and it is tested with ionospheric TEC data provided by IGS as measurements. The results calculated with data of 30 days, 40 days and 50 days respectively prove at different positions that the fitting precision is about 0.8 TECU, the conclusion of high precision with long data is not suitable and the forecast precision is related to longitude and latitude when the ionosphere is calm. |
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| Keywords: | ionosphere TEC short term forecasting variance analysis cycle superposition |
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