| Positioning Precision Analysis of GNSS Multi-frequency Carrier Phase Combinations |
| |
| 作者姓名： | WU Yue PAN Yong FAN Yimin WANG Xiaojun |
| |
| 作者单位： | Institute of Seismology China Earthquake Administration Geological HazardsMonitor Center of Three Gorges China Institute of Geo-environment Monitoring 2-1 Yunji Road Yichang 443000 China，40 Hongshance Road Wuhan 430071 China |
| |
| 基金项目： | Supported by the Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, China（No. 2006KDZ05）. |
| |
| 摘 要： | GPS positioning precision is affected by various error sources, and traditional combinations of GPS carrier phase observations have their own limitations such as the wide-lane, the narrow-lane and the ...
|
| 关 键 词： | GPS 多频相位组合观测值 定位精度 全球定位系统 |
| 文章编号： | 1009-5020（2007）04-245-05 |
| 收稿时间： | 2007-09-27 |
Positioning precision analysis of GNSS multi-frequency carrier phase combinations |
| |
| WU Yue PAN Yong FAN Yimin WANG Xiaojun.Positioning Precision Analysis of GNSS Multi-frequency Carrier Phase Combinations[J].Geo-Spatial Information Science,2007,10(4):245-249. |
| |
| Authors: | Wu Yue Pan Yong Fan Yimin Wang Xiaojun |
| |
| Institution: | Institute of Seismology, China Earthquake Administration, 40 Hongshance Road, Wuhan 430071, China;Geological Hazards Monitor Center of Three Gorges, China Institute of Geo-environment Monitoring, 2-1 Yunji Road, Yichang 443000, China |
| |
| Abstract: | GPS positioning precision is affected by various error sources, and traditional combinations of GPS carrier phase observations have their own limitations such as the wide-lane, the narrow-lane and the iono-spheric-free combinations. To obtain the optimal positioning precision, a new linear combination method is addressed through the variance-covariance (VCV) of the GPS multi-frequency carrier phase combination equations, and the impact of the positioning precision is analyzed with the changing of the observation errors deduced by the law of error propagation. For the high precision positioning with only one carrier phase combination, the optimal combination method is deduced and further validated by an ex-ample of a baseline resolution with 60 km length. The result indicates that this method is the simplest, and the positioning precision is the best. Therefore, it is useful for long baseline quick positioning for different precision requirements in various distances. |
| |
| Keywords: | GPS multi-frequency combination propagation of errors positioning precision |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
