| 计算变密度任意形状地质体重力异常的B样条函数法 |
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| 引用本文： | 姜效典,王硕儒.计算变密度任意形状地质体重力异常的B样条函数法[J].石油地球物理勘探,1990(3). |
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| 作者姓名： | 姜效典 王硕儒 |
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| 作者单位： | 青岛海洋大学地质系，青岛海洋大学地质系 |
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| 摘 要： | 在重力资料解释中,复杂形状变密度地质体重力异常的正演计算一直是一个很重要的问题。本文以B样条函数的插值、求导、求积为基础,建立了用B样条函数正演二度和三度复杂形态变密度地质体重力异常的方法。文中选用节点非等距的三次B样条函数对模型和实例的计算表明,该方法是有效的,并且精度也较高。
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| 关 键 词： | 重力异常 变密度 B样条函数 |
B spline function method for calculating gravity field of density-variable source body with arbitrary shape |
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| Jiang Xiaodian and Wang Shuoru.B spline function method for calculating gravity field of density-variable source body with arbitrary shape[J].Oil Geophysical Prospecting,1990(3). |
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| Authors: | Jiang Xiaodian and Wang Shuoru |
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| Affiliation: | Jiang Xiaodian and Wang Shuoru |
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| Abstract: | The forward modeling of gravity field of density-variable source body with complex shape is a very important problem in gravimetric data interpretation. B spline function methods for calculating gravity fields of 2D and 3D density-variable source bodies with complex shape are developed on the basis of interpolation,derivation and integration of B spline function. Synthetic model and real data calculations using node-non-uniform curbic B spline function show that this method is feasible and brings accurate result. |
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| Keywords: | gravity anomaly variable density B spline function |
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