关键词: 控制点, Kriging插值, 样条曲线, 回归函数, 相关系数

Abstract:

Some unknown points should be estimated to solve blind measurement area aroused by blade overlap in the process of propeller blade measurement,and the estimation results had an important effect on the later processing of blades.By means of the basic idea of Kriging interpolation algorithm, a improved Kriging interpolation algorithm based on mixture data (measurement data and design data) was put forward.This new model employed spline method as the regression function,and whose subject was made up of measurement data.Besides,the characteristics of propeller section curve were considered adequately and the extension trend of the curve in the blind measurement area would be come up with design data.The experimental results show that the approach is of operation efficiency and the estimation results will satisfy application requirements of the enterprises.

Key words: control point, Kriging interpolation, spline;regression function, correlation coefficient