| 基于高精度GNSS定位解算及姿态数据获取潮位研究 |
| Research on tidal acquisition based on high-precision GNSS positioning solution and attitude data |
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| DOI： |
| 中文关键词: GNSS高程 潮位 姿态改正 船舶吃水 深度基准面 |
| 英文关键词:GNSS elevation, tidal data, attitude correction, vessel draught, depth datum |
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| 中文摘要: |
| 本文基于GNSS高精度定位解算成果中的高程数据，利用测船航行过程中实时采集的姿态数据进行涌浪补偿，并根据船舶每天的吃水变化将GNSS天线高调整为瞬时水面高；通过相邻水位站的比对获取GNSS高程与深度基准面的高差，对获取的瞬时水面高进行基准面变换，得到基于深度基准面的潮位值。针对以上技术路线进行了研究，并在工程中进行了验证，成果统计数据证明提取的潮位满足规范要求，可在实践中应用推广。 |
| 英文摘要: |
| Based on the elevation data of GNSS high-precision positioning solution, this paper uses real-time attitude data collected during vessel navigation to compensate the surge, and adjusts the GNSS antenna height to the instantaneous water level according to the daily draught change of the vessel. The difference between GNSS elevation and depth datum is obtained by comparing the adjacent tide stations. and performs a datum transformation on the acquired instantaneous water level height to obtain tidal data based on the depth datum. The technical routes are studied and verified in the project. The statistical data of the results show that the tidal data extracted meets the specification requirements and can be applied and popularized in practice. |
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