| 利用航磁数据向下延拓得到海面磁场的方法 |
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| 引用本文： | 于波,翟国君,刘雁春,黄谟涛.利用航磁数据向下延拓得到海面磁场的方法[J].测绘学报,2009,38(3):0-201. |
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| 作者姓名： | 于波 翟国君 刘雁春 黄谟涛 |
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| 作者单位： | 1. 大连舰艇学院,海测工程系,辽宁,大连,116018
2. 海洋测绘研究所,天津,300061 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用航磁数据向下延拓到海面代替船测数据,可提高磁力测量成果的综合利用率.基于多尺度边缘检测理论,研究改善航磁数据向下延拓到海面精度的方法,提出多尺度边缘约束迭代法,并给出模型和实测数据算例.计算结果表明,当航磁数据中噪声水平较大时,利用多尺度边缘约束迭代法可以提高向下延拓的精度,满足三、四级海洋磁力测量的精度要求.
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| 关 键 词： | 海洋磁力测量 航磁 向下延拓 遮代法 多尺度边缘 |
The Downward Continuation Method of Aeromagnetic Data to the Sea Level |
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| YU Bo,ZHAI Guojun,LIU Yanchun,HUANG Motao.The Downward Continuation Method of Aeromagnetic Data to the Sea Level[J].Acta Geodaetica et Cartographica Sinica,2009,38(3):0-201. |
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| Authors: | YU Bo ZHAI Guojun LIU Yanchun HUANG Motao |
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| Institution: | YU Bo1,ZHAI Guojun2,LIU Yanchun1,HUANG Motao21.Department of Hydrography , Cartography,Dalian Naval Academy,Dalian,116018,China,2.Naval Institute of Hydrographic Surveying , Charting,Tianjin,300061 |
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| Abstract: | Aeromagnetic data downward continuation to sea level instead of marine magnetic survey data can improve use capability of survey data.Based on principle of multiscale edge detection,a new method to improve accuracy of aeromagnetic data downward continuation to sea level is studied,multiscale edge constraint iteration method is presented.By the calculation,it is shown that the new algorithm can improve accuracy of downward continuation,accord with accuracy specification of three or four level marine magnetic... |
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| Keywords: | marine magnetic survey aeromagnetic downward continuation iteration method multiscale edge |
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