| 重磁异常信号的非高斯性探讨 |
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| 引用本文： | 徐志萍,姜磊,李德庆,杨利普,熊伟.重磁异常信号的非高斯性探讨[J].地震地磁观测与研究,2014(3):118-123. |
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| 作者姓名： | 徐志萍 姜磊 李德庆 杨利普 熊伟 |
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| 作者单位： | 中国地震局地球物理勘探中心,中国郑州450002 |
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| 基金项目： | 国家自然科学基金项目“华北克拉通三维速度、密度结构及动力学意义”（项目批准号41274113）.感谢刘天佑老师对文章提出的宝贵意见. |
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| 摘 要： | 从盲源分离方法的问题及假设条件出发，阐述了探讨重磁信号非高斯性的必要性；通过对不同理论模型重磁异常信号的非高斯性进行研究，得出球体与直立长方体的重磁异常信号不是高斯信号；同时得出台阶重磁异常信号的非高斯性与其埋深有关，与磁化方向无关。
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| 关 键 词： | 盲源分离 非高斯性 重磁异常 |
The discussion on the non Gauss of gravity and magnetic anomalies signals |
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| Xu Zhiping,Jiang Lei,Li Deqing,Yang Lipu,Xiong Wei.The discussion on the non Gauss of gravity and magnetic anomalies signals[J].Seismological and Geomagnetic Observation and Research,2014(3):118-123. |
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| Authors: | Xu Zhiping Jiang Lei Li Deqing Yang Lipu Xiong Wei |
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| Institution: | (Geophysical Exploration Center, China Earthquake Administration, Zhengzhou 450002, China) |
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| Abstract: | Firstly,the paper proposed the necessity of discussing the non Gauss of gravity and magnetic anomalies signals according to the basic assumptions of the blind source separation and separation conditions.Secondly,it was obtained that gravity and magnetic anomaly signals of the sphere and upright rectangular are not Gauss signals by studying on the Gauss of gravity and magnetic anomalies signals of the different theoretical models.At the same time,it was concluded that whether the gravity and magnetic anomalies of steps is Gauss signals,depends on its depth rather than the direction of magnetization. |
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| Keywords: | blind source separation non Gauss gravity and magnetic anomalies |
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