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利用磁异常与地下磁性物质的磁参数呈线性关系来求解地下磁性体的分布称线性反演,借助电子计算机作较大量的计算可取得较好的效果。这方面的工作在国内外已有一些成果。1977年河南省地质局物探队陶榕生同志提出了基本设想并列出了简略方程。在国外,1967年M.H.P.Bott曾用此方法解释海磁异常,1976年Sven-Erik Hjelt讨论了用高斯—赛德尔迭代法于重磁异常的线性参数解释,分析了不同形状的磁性体的迭代收敛条件。本文进一步分析方法实质,构制较实用的收敛判别曲线,并计算两个实例,以了解方法的特点和应用条件。
Using the linear relationship between the magnetic anomaly and the magnetic parameters of the underground magnetic material to solve the distribution of the underground magnetic body, the linear inversion can be obtained with the aid of a computer. Some work has been done in this area at home and abroad. In 1977, Comrade Tao Rongsheng, a geophysical team of the Henan Bureau of Geology, put forward the basic idea and outlined a simple equation. Abroad, in 1967, MHPBott used this method to explain the magnetic anomalies. In 1976, Sven-Erik Hjelt discussed the linear parameter interpretation of gravity and magnetic anomalies by the Gauss-Seidel iteration method, and analyzed the iterative convergence of different shapes of magnetic bodies condition. This paper further analyzes the essence of the method and constructs a more practical convergence curve, and calculates two examples to understand the characteristics and application conditions of the method.