关键词: 三角形拟合, 模式识别, 模糊模型, 油层, 对比, 方法

Abstract: A method for extracting the characteristics of one dimensional curves by trigonometric fitting is now proposed.In the method,there are three steps to be done as following:first,the curves must be transformed into positive curves all the crests of which are to positive side of Y axis,then,each crest of the transformed curves is trigonometrically fitted by using a group of horizontal secants,and a set of triangles is obtained;Finally,the pattern recognition and the characteristics extraction are performed based on the set of triangles.It is also presented how to implement the automatic correlation of pays by the proposed method.Theoretic and experimental results show that the method is very effective.

Key words: trigonometric fitting, pattern recognition, fuzzy models, oil bed, correlation, method