| Etvs效应改正中航速、航向角计算方法研究 |
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| 引用本文： | 于波,刘雁春,暴景阳,翟国君,边刚,肖付民.Etvs效应改正中航速、航向角计算方法研究[J].测绘科学,2007(3). |
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| 作者姓名： | 于波 刘雁春 暴景阳 翟国君 边刚 肖付民 |
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| 作者单位： | 海军大连舰艇学院海测工程系 辽宁大连116018(于波，刘雁春，暴景阳，边刚，肖付民)，海洋测绘研究所 天津300061(翟国君) |
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| 基金项目： | 地球空间环境与大地测量教育部重点实验室开放基金资助项目(1469990324233-04-03) |
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| 摘 要： | Etvs效应是影响海洋重力测量精度的主要误差之一,为了减小由定位误差所引起的Etvs效应改正误差,本文基于对常用的直接差分算法进行分析,提出了测线滑动拟合算法。理论研究和实例计算结果表明以测线滑动拟合算法求定航速、航向角比通常采用的直接差分算法使Etvs效应改正精度明显提高。
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| 关 键 词： | 海洋重力测量 Etvs效应改正 测线滑动拟合 |
Study on Etvs effect correction in marine gravimetry |
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| Abstract: | The Etvs effect plays a very important role in the data processing of Marine Gravimetry, and it has a great influence on the improvement in precision. To diminish positioning error, the slid interpolation arithmetic of surveying line has been given out by authors. The optimal interpolate time interval has been obtained. It has been theoretically and practically proved that the new arithmetic can provide greater precision in calculating the course and the speed of the surveying vessel than the other arithmetic. It can improve the quality of the Marine Gravimetry. |
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| Keywords: | marine gravimetry Etvs effect correction slid interpolation arithmetic |
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