| 航海用DDM向非航海用转换时的整体偏差补偿方法 |
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| 引用本文： | 曹鸿博,张立华,陈秋,贾帅东,刘现鹏.航海用DDM向非航海用转换时的整体偏差补偿方法[J].测绘通报,2017,0(7):132-136. |
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| 作者姓名： | 曹鸿博 张立华 陈秋 贾帅东 刘现鹏 |
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| 作者单位： | 1. 海军大连舰艇学院海洋测绘系, 辽宁 大连 116018;2. 海军大连舰艇学院海洋测绘工程军队重点实验室, 辽宁 大连 116018;3. 海军出版社, 天津 300450;4. 海军参谋部航海保证局, 北京 100841 |
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| 摘 要： | 针对航海用数字水深模型（DDM）向非航海用转换这一问题，提出了一种用整体偏差值补偿来提高转换精度的方法。首先建立航海用DDM整体性偏差值与海底地形复杂因子、海图比例尺之间的关系；其次依据上述关系预先推算航海用DDM的整体偏差值；最后将整体偏差值补偿到转换前的航海用DDM的模型点上，以提高转换后的非航海用DDM精度。试验证明：①所提的方法可行，可提高转换后非航海用DDM的精度；②转换后非航海用DDM精度提高的程度与海底地形复杂因子和海图比例尺有关。
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| 关 键 词： | 数字水深模型 海底地形复杂因子 海图比例尺 模型转换 中误差 |
| 收稿时间： | 2017-01-06 |
A Method for Compensating the Whole Deviation of the Transformation from DDM for Navigation to DDM for Non-navigation |
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| CAO Hongbo,ZHANG Lihua,CHEN Qiu,JIA Shuaidong,LIU Xianpeng.A Method for Compensating the Whole Deviation of the Transformation from DDM for Navigation to DDM for Non-navigation[J].Bulletin of Surveying and Mapping,2017,0(7):132-136. |
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| Authors: | CAO Hongbo ZHANG Lihua CHEN Qiu JIA Shuaidong LIU Xianpeng |
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| Institution: | 1. Department of Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China;2. Navigation Department of Dalian Maritime University, Dalian 116018, China;3. Navy Press, Tianjin 300450, China;4. Navigation Guarantee Bureau of the Naval Staff Department, Beijing 100841, China |
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| Abstract: | Aiming at a problem of the model transformation from digital depth model (DDM) for navigation to DDM for non-navigation, the method for compensating the whole deviation is proposed to improve the accuracy of model transformation.First of all, the relationship between the whole deviation of DDM for navigation, submarine terrain complexity factor and chart scale was established.Secondly, the whole deviation of DDM for navigation is obtained by the above formula.Finally, the whole deviation is compensated to the model points of DDM for navigation to improve the accuracy of DDM for non-navigation to which is transformed form DDM for navigation.The experimental results demonstrate: ①The proposed method is feasible to improve the accuracy of DDM for non-navigation to which is transformed form DDM for navigation.②The degree of improvement of the accuracy DDM for non-navigation depends on the submarine terrain complexity factor and chart scale. |
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| Keywords: | digital depth model submarine terrain complexity factor chart scale model transformation mean square error |
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