| 一种海洋磁力测量降噪的有效方法 |
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| 引用本文： | 于波,翟国君,刘雁春,边刚,肖付民.一种海洋磁力测量降噪的有效方法[J].测绘学院学报,2009(3). |
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| 作者姓名： | 于波 翟国君 刘雁春 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;天津海洋测绘研究所; |
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| 基金项目： | 国家自然科学基金资助项目(40671161) |
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| 摘 要： | 波浪噪声和随机噪声是影响海洋磁力测量数据处理精度的重要因素。基于小波阈值消噪理论,研究了海洋磁力测量数据中的波浪和随机噪声的消除方法。仿真和实例计算表明:借助于小波的分解与重构,有效地减弱或消除了测量数据中的波浪和随机噪声,具有较高的精度和可靠性。该方法解决了传统的滑动拟合法对波浪和随机噪声与测量数据中的真实高频信息一起平滑过滤的局限性问题。
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| 关 键 词： | 海洋磁力测量 小波阈值 滑动拟合 消噪 随机噪声 |
A Novel Method for De-nosing in Marine Magnetic Survey |
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| YU Bo,ZHAI Guo-jun,LIU Yan-chun,BIAN Gang,XIAO Fu-min.A Novel Method for De-nosing in Marine Magnetic Survey[J].Journal of Institute of Surveying and Mapping,2009(3). |
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| Authors: | YU Bo ZHAI Guo-jun LIU Yan-chun BIAN Gang XIAO Fu-min |
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| Institution: | 1.Department of Marine and Surveying Science;Dalian Naval Academy;Dalian 116018;China;2.Naval Institute of Hydrographic Surveying and Charting;Tianjin 300061;China |
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| Abstract: | Wave noise and random noise are remarkable factors in influencing accuracy of processing of marine magnetic survey. Based on the basic theory of wavelet threshold,a method of de-nosing is presented to improve the precision of de-noising.Simulation and practical results shows that,by using wavelet decomposition and reconstruction,the method can efficiently remove wave and random noise of data.Moreover,compared with classic processing techniques,it has excellent accuracy and reliability.The method has solved ... |
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| Keywords: | marine magnetic survey wavelet threshold slide fitting de-noising random noise |
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