摘要
论文给出了一种求地层特性参数的曲线匹配算法。首先对原始数据进行拟合,在不增加新条件的前提下计算出型值点上对应的一阶二阶导数;然后由模板曲线和拟合曲线段的渐缩线特征搜索出拟合曲线段在模板曲线上的对应段,由此求得相应的地层特性参数。实验表明,文中所叙述的方法是比较有效的。
This paper gives a new curves matching method of computing parameters about the surface of the earth.The corresponding first derivatives are obtained under the primitive condition with the approximation method.And the corre-sponding curve segments are found from asymptotic features between template curves and approximate curves.The pa-rameters are given from this curve segments.The comparison of the computing results using some actual data shows that the approach proposed in the paper is effective.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第27期228-229,共2页
Computer Engineering and Applications
基金
国家863高技术研究发展计划科技攻关项目(编号:2001AA231031)资助
关键词
曲线匹配
模板曲线
几何特征
curves matching,template curves,geometric features