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- W2361008982 abstract "Regularization method is a powerful method in dealing with downward continuation of potential field.A very important part of regularization method is the selection of optimum regularization parameter,and the accuracy of result of downward continuation is affected by the selected parameter.In this paper,we adapt L-curve method to select the optimum regularization parameter.With the help of curvature function,we can find the maximum curvature point of L-curve,which corresponds to the optimum regularization parameter.How to efficiently calculate the value of aided function is crucial.Applying Parseval equation,we derive the frequency expression of curvature function,so that we can calculate the value of curvature function by using Fast Fourier Transform algorithm which makes the whole process very fast.We test the validity of L-curve method in selecting regularization parameter using modal data and aeromagnetic data.The result shows that the L-curve method has good adaptability in dealing with data with different signal to noise ratio,and downward continuation result shows high accuracy." @default.
- W2361008982 created "2016-06-24" @default.
- W2361008982 creator A5011623798 @default.
- W2361008982 date "2013-01-01" @default.
- W2361008982 modified "2023-09-24" @default.
- W2361008982 title "The selection of regularization parameter in downward continuation of potential field based on L-curve method" @default.
- W2361008982 hasPublicationYear "2013" @default.
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