Precise absolute positioning for a single-frequency user
Li HaoJun1; Tang GuiFeng1; He Feng1; Wu Bin1; Hu XiaoGong1; Chen YanLing1
AbstractA new strategy to realize precise absolute positioning for a single-frequency user is presented. In the presented strategy, the receiver clock and ambiguities are removed using the satellite- and epoch-differenced (SDED) algorithm. As a further development of the SDED algorithm, a regional augmentation network is used to generate the SDED atmospheric delays at the user. The weakened mathematic property due to the epoch-differenced operation is improved by adding the generated atmospheric delays and applying the robust estimation. To test the new approach, the 24-h data at 5 Continuous Operation Reference Station (CORS) stations in Shanghai is processed. The results show a more than 96% success rate, defined as the case where three directions achieve the desired positioning accuracy of 10 cm, when the observation is longer than 20 min. The 20-min static results show that the new method can reach an accuracy of 3.42, 4.76 and 9.26 cm in the North, East and Up directions, respectively. An experiment was carried out to assess the kinematic positioning. The results show that the kinematic positioning accuracy is 4.11, 5.31 and 4.05 cm in the north-south, east-west and height directions, respectively.
KeywordGPS NETWORK RESOLUTION absolute positioning single-frequency user correction information
Funding Project[National Natural Science Foundation of China] ; [Opening Project of Shanghai Key Laboratory of Space Navigation and Position Techniques] ; [Guangxi Key Laboratory of Spatial Information and Geomatics]
Document Type期刊论文
2.Guilin University Technol, Guangxi Key Lab Spatial Informat & Geomat, Guilin 541004, Peoples R China
3.Shanghai Key Lab Space Nav & Posit Tech, Shanghai 200030, Peoples R China
4.Beijing Satellite Nav Ctr, Beijing 100094, Peoples R China
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li HaoJun,Tang GuiFeng,He Feng,et al. Precise absolute positioning for a single-frequency user[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(8):1591.
APA Li HaoJun,Tang GuiFeng,He Feng,Wu Bin,Hu XiaoGong,&Chen YanLing.(2013).Precise absolute positioning for a single-frequency user.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(8),1591.
MLA Li HaoJun,et al."Precise absolute positioning for a single-frequency user".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.8(2013):1591.
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