| GPRSTK在航潮位测量及在天津新港航道的实现 |
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| 引用本文： | 董江,王胜平.GPRSTK在航潮位测量及在天津新港航道的实现[J].水道港口,2008,29(2):148-152. |
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| 作者姓名： | 董江 王胜平 |
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| 作者单位： | 1. 天津海事局海测大队,天津,300220
2. 武汉大学,测绘学院,武汉,430079 |
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| 摘 要： | 在分析传统潮位测量方法和潮位模型缺陷的基础上,给出了GPS在航潮位测量方法。基于GPSRTK动态定位技术,系统地研究了GPS RTK在航潮位测量、数据处理的基本理论和流程,并对潮位测量和数据处理中的GPS RTK高程质量控制、姿态改正、动态吃水改正、潮位提取、垂直基准转换5个关键问题进行了深入研究,最终确定了测量船测量期间的在航潮位。将这些研究成果应用到天津新港航道的在航潮位试验中,2 d的试验结果表明,GPS在航潮位测量方法相对传统的潮位测量方法在实施的简便性、精度等方面具有较大的优越性。鉴于该方法的特点以及航道的特点,建议该方法广泛推广应用于航道在航潮位测量中。
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| 关 键 词： | GPSRTK在航潮位测量 姿态改正 垂直基准转换 动态吃水 |
| 文章编号： | 1005-8443(2008)02-0148-05 |
| 修稿时间： | 2008年2月28日 |
On-the-fly GPS RTK tidal measurement and implement in Tianjin Xingang |
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| DONG Jiang,WANG Sheng-ping.On-the-fly GPS RTK tidal measurement and implement in Tianjin Xingang[J].Journal of Waterway and Harbour,2008,29(2):148-152. |
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| Authors: | DONG Jiang WANG Sheng-ping |
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| Abstract: | Based on analyzing these disadvantages of traditional tidal measurement and tidal model,the paper presents the on-the-fly GPS tidal measurement.The principle and procedure of the method are studied in detail.Meantime,the quality control of GPS RTK height,attitude correction,dynamitic squat,extraction of tidal level and the transformation of vertical datum are discussed.Finally,on-the-fly tidal level at vessel is determined.The method is used in the tidal measurement in Xingang Sea-Route of Tianjin.The actual applications in Xingang Sea-route show that the method has more advantage relative to traditional tidal measurement and can be used in actual sea engineering.Considering the characters of the method and sea-route,the method is recommended using for the on-the-fly tidal level measurement along sea-route. |
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| Keywords: | on-the-fly GPS tidal measurement attitude correction vertical datum transformation dynamic squat |
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