基于DCT的广义指数阈值衰减凸集投影算法在位场数据补空中的应用

艾寒冰, 王彦国

Interpolation of potential-field data by Projection Onto Convex Sets algorithm with generalized exponential threshold and based on Discrete Cosine Transform

AI Han-Bing, WANG Yan-Guo

图8 常规插值方法对含噪缺失数据体的补空结果及与原数据的残差 a、b—克里金法插值及残差;c、d—径向基函数法插值及残差;e、f—反距离加权法插值及残差;g、h—最小曲率法及残差

Fig.8 Results of interpolating noise-corrupted data using conventional interpolation methods and the difference with the original noise-free data a、b—interpolated result of Kriging and its residuo;c、d—interpolated result of radial basis function and its residuo;e、f—interpolated result of inverse distance to a power and its residuo;g、h—interpolated result of minimum curvature and its residuo