二维不规则数据网格化方法研究概述

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摘要

本文叙述国内外二维不规则数据点网格化方法的发展概况、并简述方法各自相对的优缺点。插值法分为精确法和近似法。精确法中,分片曲面常常比连续曲面更可取,它在数学上简单、明确,一般采用多项式。这里介绍确定非正交、正交和加权多项式的方法。近似法中一般采用加权平均和有限差分法。加权平均法简单、计算速度快,对于低梯度变化和均匀分布的数据点常常能得到较好的结果。差分法采用迭代求解,适合于计算机的应用。本文还介绍了用双立方函数直接绘制不规则数据等值线图,以获得规则网格的方法。最后推荐几个值得推广使用的网格化方法。

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关键词 ：地震测井, 电火花震源, 等效球形腔

Key words： seismic logging electrospark seismic source equivalent spherical cavity

出版日期: 1983-12-24

引用本文:

王建谋, 陈维雄. 二维不规则数据网格化方法研究概述[J]. 物探与化探, 1983, 7(6): 344-349,329.

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https://www.wutanyuhuatan.com/CN/Y1983/V7/I6/344

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