| 不同星历和钟差产品的PPP验潮试验及结果分析 |
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| 引用本文： | 范士杰,秦学彬,吴绍玉,牟春霖,刘洪喜.不同星历和钟差产品的PPP验潮试验及结果分析[J].海洋测绘,2014(4):43-46. |
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| 作者姓名： | 范士杰 秦学彬 吴绍玉 牟春霖 刘洪喜 |
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| 作者单位： | [1]中国石油大学地球科学与技术学院,山东青岛266580; [2]东方地球物理公司装备服务处测量服务中心,天津300280 |
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| 基金项目： | 国家自然科学基金（41274011）. |
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| 摘 要： | 基于动态精密单点定位(PPP)技术,借助研制的PPP软件,采用IGR、IGU等快速星历和钟差产品,进行了海上船载PPP验潮试验,并对其精度进行了分析。结果表明:与传统RTK验潮技术相比,海上PPP验潮的精度优于0.1m,能够满足海上OBC地震勘探等工作对潮汐数据的精度要求;基于IGU星历的PPP验潮方法的时延较短,更加符合海洋潮汐数据的时效性需求。
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| 关 键 词： | 精密单点定位 精密星历 卫星钟差 潮汐测量 |
Tidal Level Measurement Test and Result Analysis Based on PPP with Different Ephemeris and Clock Offsets |
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| FAN Shijie,QIN Xuebin,WU Shaoyu,MOU Chunlin,LIU Hongxi.Tidal Level Measurement Test and Result Analysis Based on PPP with Different Ephemeris and Clock Offsets[J].Hydrographic Surveying and Charting,2014(4):43-46. |
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| Authors: | FAN Shijie QIN Xuebin WU Shaoyu MOU Chunlin LIU Hongxi |
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| Institution: | FAN Shijie, QIN Xuebin, WU Shaoyu, MOU Chunlin, LIU Hongxi ( 1. School of Geosciences, China University of Petroleum, Qingdao 266580, China; 2. Survey Center of BGP Equipment, CNPC ,Tianjin 300280 ,China) |
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| Abstract: | Based on kinematic precise point positioning （PPP） technology and self-developed PPP software, this paper carries out a tidal level measurement test. Using IGR and IGU ephemeris and satellite clock offsets, the precision of oceanic GPS tidal level measurement is analyzed. Compared with the traditional RTK tidal level measurement, the precision of oceanic PPP tidal level measurement is better than 0.1 meters which could satisfy the accuracy requirement of tidal data in oceanic OBC seismic exploration. PPP tidal level measurement with IGU ephemeris and satellite clock offset has a shorter delay and better application in meeting the timeliness requirements of oceanic tidal data. |
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| Keywords: | precise point positioning precise satellite ephemeris satellite clock offset tidal level measurement |
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