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| 顾及星间单差残差的GPS斜路径水汽含量估计 | |
| 引用本文： | 范士杰,刘焱雄,高兴国,冯义楷.顾及星间单差残差的GPS斜路径水汽含量估计[J].武汉大学学报(信息科学版),2012,37(7):834-838. |
| 作者姓名： | 范士杰 刘焱雄 高兴国 冯义楷 |
| 作者单位： | 1. 武汉大学测绘学院,武汉市珞喻路129号430079 国家海洋局第一海洋研究所,青岛市仙霞岭路6号266061 中国石油大学地球科学与技术学院,青岛市长江西路66号266555 海岛礁测绘技术国家测绘地理信息局重点实验室,青岛市前湾港路579号266510 2. 武汉大学测绘学院,武汉市珞喻路129号430079 国家海洋局第一海洋研究所,青岛市仙霞岭路6号266061 3. 国家海洋局第一海洋研究所,青岛市仙霞岭路6号,266061 |
| 基金项目： | 国家863计划资助项目，海岛(礁)测绘技术国家测绘地理信息局重点实验室资助项目 |
| 摘 要： | 基于精密单点定位(precise point positioning,PPP)技术,对海上动态GPS斜路径水汽含量(SWV)估计进行研究。在现有计算方法的基础上,提出了顾及星间单差残差的SWV提取方法。利用渤海湾船载动态GPS测量数据和同步气象观测数据,对新方法的有效性进行了验证。结果表明,相对于MM5模式积分水汽结果,采用新方法计算的SWV值的RMS为1.2mm,比传统"非差残差法"减小了1mm。 |
| 关 键 词： | 精密单点定位 非差残差 斜路径水汽含量 |
Estimate of GPS Slant-path Water Vapor Based on Single-differenced Residuals Between Satellites |
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| FAN Shijie,LIU Yanxiong,GAO Xingguo,FENG Yikai.Estimate of GPS Slant-path Water Vapor Based on Single-differenced Residuals Between Satellites[J].Geomatics and Information Science of Wuhan University,2012,37(7):834-838. | |
| Authors: | FAN Shijie LIU Yanxiong GAO Xingguo FENG Yikai |
| Institution: | 1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 The First Institute of Oceanography,State Oceanic Administration,6 Xianxialing Road,Qingdao 266061,China)(3 School of Geosciences,China University of Petroleum,66 West Changjiang Road,Qingdao 266555,China)(4 Key Laboratory of Surveying and Mapping Technology on Island and Reef,National Administration of Surveying, Mapping and Geoinformation,579 Qianwangang Road,Qingdao 266510,China) |
| Abstract: | The estimate of marine kinematic GPS slant-path water vapor(SWV) is researched using Precise Point Positioning(PPP) technique in this paper.Based on the current study,this paper proposes a new method which takes into account the single difference residuals between satellites.The validity of this new method is verified by the comparison between the result of MM5 and that from the ship-borne kinematic GPS data.The result shows that the new method gives 1.2 mm RMS in SWV relative to MM5 result.That improves 1mm RMS in SWV compared to the current method. |
| Keywords: | precise point positioning zero difference residuals slant-path water vapor |
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