The realization and analysis of GNSS network based real-time precise point positioning

被引：16

作者：

Li Hao-Jun ^{[1
]}

Wang Jie-Xian ^{[1
,2
]}

Chen Jun-Ping ^{[3
]}

Hu Cong-Wei ^{[1
,2
]}

Wang Hu ^{[1
]}

机构：

[1] Tongji Univ, Dept Surveying & Geoinformat Engn, Shanghai 200092, Peoples R China

[2] State Bur Surveying & Mapping, Key Lab Modern Engn Surveying, Shanghai 200092, Peoples R China

[3] Deutsch GeoForschungsZentrum GFZ, D-14473 Potsdam, Germany

来源：

CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION | 2010年 / 53卷 / 06期

关键词：

Real-time precise point positioning; GNSS network; Epoch-differenced; Satellite-differenced;

D O I：

10.3969/j.issn.0001-5733.2010.06.008

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Based on the regional GNSS (Global Navigation Satellite System) network, the real-time epoch-differenced values of relative clock are estimated using the algorithm of epoch-differential and satellite-differential derived model. On account of the character of precise real-time clocks, the estimation model of real-time precise point positioning is deduced by a satellite-differential algorithm. Comparing the epoch-differenced values of relative clock and the IGS final products, the accuracy can be at 0. 08 ns. The hourly data was processed using the real-time precise point positioning algorithm based on the estimated real-time precise clocks. In static mode, the hourly positioning accuracy in the N, E and U directions are 1. 47, 3. 62, 4. 09 cm respectively. The kinematic positioning accuracy in the N, E and U directions are 2. 63, 3. 82, 5. 20 cm respectively. The accuracy of real-time solution is better than the precise point positioning using the IGS final orbits and clocks in the N, E and U three directions.

引用

页码：1302 / 1307

页数：6

共 16 条

[1] [Anonymous], 2005, J GLOB POSITIONING S
[2] Caissy M., 2006, STREAMING GNSS DATA
[3] Ge M, 2008, J GEODESY, V82, P389, DOI [10.1007/s00190-007-0208-3, 10.1007/s00190-007-0187-4]
[4] Improving carrier-phase ambiguity resolution in global GPS network solutions
Ge, M
Gendt, G
Dick, G
Zhang, FP
[J]. JOURNAL OF GEODESY, 2005, 79 (1-3) : 103 - 110
[5] Near real-time water vapor estimation in a German GPS network-first results from the ground program of the HGF GASP project
Gendt, G
Reigber, C
Dick, G
[J]. PHYSICS AND CHEMISTRY OF THE EARTH PART A-SOLID EARTH AND GEODESY, 2001, 26 (6-8): : 413 - 416
[6] Accurate absolute GPS positioning through satellite clock error estimation
Han, SC
Kwon, JH
Jekeli, C
[J]. JOURNAL OF GEODESY, 2001, 75 (01) : 33 - 43
[7] Kalman-filter-based GPS clock estimation for near real-time positioning
Hauschild, Andre
Montenbruck, Oliver
[J]. GPS SOLUTIONS, 2009, 13 (03) : 173 - 182
[8] Heroux P., 2001, Physics and Chemistry of the Earth, Part A, V26, P573, DOI [10.1007/pl00012883, DOI 10.1007/PL00012883, 10.1007/PL00012883]
[9] Hu Cong-wei, 2005, Transactions of Nanjing University of Aeronautics & Astronautics, V22, P124
[10] The effect of different tropospheric models on precise point positioning in kinematic mode
Jensen, A. B. O.
Ovstedal, O.
[J]. SURVEY REVIEW, 2008, 40 (308) : 173 - 187

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