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| ????BDS??GPS???????λ?????????????????? | |
| 引用本文： | 范磊,钟世明,潭冰峰,欧吉坤.????BDS??GPS???????λ??????????????????[J].大地测量与地球动力学,2015,35(1):67-71. |
| 作者姓名： | 范磊 钟世明 潭冰峰 欧吉坤 |
| 作者单位： | 1 中国科学院测量与地球物理研究所, 武汉市徐东大街340号， 430077 2 中国科学院大地测量与地球动力学国家重点实验室, 武汉市徐东大街340号， 430077 3 中国科学院大学，北京市石景山区玉泉路甲19号，100049 |
| 基金项目： | 国家自然科学基金（41074013,41174015）; 大地测量与地球动力学国家重点实验室基金（SKLGED2013-4-2-Z） |
| 摘 要： | ??BDS??GPS?????????????￡????????IGS??MGEX???????????????????CODE?o?GPS?????WHIGG?????BDS?????????????GPS??????BDS??????????????????о??????λ??PPP??????????????????????????????????????з?????????????????IGS???????????????????GPS???????????????????????????????????侫???mm????BDS?????????GPS????????侫??????2??cm??GPS??BDS???????????GPS???????????? |
| 关 键 词： | BDS GPS ???????λ ??????????? |
| 收稿时间： | 2014-01-13 |
Comparison of the Zenith Tropospheric Delay Estimated by Precise Point Positioning Using BDS and GPS Data Respectively |
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| FAN Lei,ZHONG Shiming,TAN Bingfeng,OU Jikun.Comparison of the Zenith Tropospheric Delay Estimated by Precise Point Positioning Using BDS and GPS Data Respectively[J].Journal of Geodesy and Geodynamics,2015,35(1):67-71. | |
| Authors: | FAN Lei ZHONG Shiming TAN Bingfeng OU Jikun |
| Affiliation: | 1 Institute of Geodesy and Geophysics,CAS, 340 Xudong Street, Wuhan 430077, China 2 State Key Laboratory of Geodesy and Earth’s Dynamics,CAS,340 Xudong Street,Wuhan 430077,China 3 University of Chinese Academy of Sciences,A19 Yuquan Road,Beijing 100049,China |
| Abstract: | In order to compare the zenith tropospheric delay (ZTD) estimated by precise point positioning (PPP) using BDS and GPS data respectively under the conditions of the existing constellation, the solutions by BDS only, GPS only and combined BDS/GPS are presented and analyzed. We use real tracking data of a single day from IGS and MGEX stations with precise orbit and precise satellite clocks obtained from CODE and WHIGG. The experimental results show that an accuracy of X mm level can be achieved by GPS, while less than 2cm can be achieved by BDS compare to IGS ZTD products. This suggests that a more accurate result is obtained by GPS than BDS. In addition, a similar result is achieved by combined GPS/BDS as compared to that of GPS only. |
| Keywords: | BDS GPS precise point positioning zenith tropospheric delay |
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