| 利用差分订正求取中期验潮站海图深度基准面的研究 |
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| 引用本文： | 孙新轩,刘强,李改肖.利用差分订正求取中期验潮站海图深度基准面的研究[J].海洋测绘,2010,30(5):9-13. |
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| 作者姓名： | 孙新轩 刘强 李改肖 |
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| 作者单位： | 海军大连舰艇学院海测工程系;海军司令部航海保证部; |
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| 摘 要： | 针对中期验潮站因观测时间较短而导致所得调和常数不稳定的实际,对中期验潮站海图深度基准面的确定方法进行了理论研究。分析了海道测量规范中求取海图深度基准面的方法;提出了一种利用差分订正来求取中期验潮站海图深度基准面的方法;并与《海道测量规范》及最小二乘拟和传递法两种方法进行了理论和实例对比分析。研究结果表明,差分订正方法用于确定中期验潮站海图深度基准面,具有更高的精度。
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| 关 键 词： | 海图深度基准面 中期验潮站 调和常数 差分订正 |
Determination of Chart Datum Values for the Middle Term Tidal Gauges Based on the Differential Correction Algorithm |
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| SUN Xin-xuan,LIU Qiang,LI Gai-xiao.Determination of Chart Datum Values for the Middle Term Tidal Gauges Based on the Differential Correction Algorithm[J].Hydrographic Surveying and Charting,2010,30(5):9-13. |
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| Authors: | SUN Xin-xuan LIU Qiang LI Gai-xiao |
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| Institution: | SUN Xin-xuan1,LIU Qiang2,LI Gai-xiao1(1.Department of Hydrography and Cartography Engineering,Dalian Naval Academy,Dalian,Liaoning,116018,2.Navigation Guarantee Department of Naval Headquarters,Tianjin,300042) |
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| Abstract: | According to the characteristics of observations of the middle term tidal gauge,such as the instability of harmonic constants due to the short-term observation duration,the algorithm for determining chart datum values for the middle term tidal gauge in the specification for hydrographic survey is analysed.A new algorithm of determining chart datum values of the middle term tidal gauge based on the differential correction is presented in this paper.Both of the two algorithms are compared with real observatio... |
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| Keywords: | chart datum values middle term tidal gauge harmonic constants differential correction |
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