关键词: 距离, 方位, 加权法, 屏蔽系数, 吸引子, Hurst指数, 等值图

Abstract: This paper presents studies on improving the weighted method with direction distance.The defects of the weighted method with distance square inverse ration and the weighted method with direction distance are pointed out.The concept of shield coefficient is introduced.The weighted method with the shield coefficient is obtained.The defects of the weighted method with direction fractal dimensions are presented.The weighted method with Hurst exponent and weighted methods with fractal dimensions of attractor are achieved.The superiority of the new methods is explained by means of contour curves of a practical example.

Key words: distance, direction-distance, weighted method, shield coefficient, Hurst index, contour curves