Abstract:The determination of regularization parameters is the key to the inversion of coseismic earthquake slip distribution. In view of the selection of regularization parameters in seismic slip distribution inversion, the U curve method is proposed in this paper. Using the U curve method and L curve method to design the simulation experiment. Moreover, the two methods are applied to the inversion of Lushan earthquake. The inversion results of simulation experiment and the Lushan earthquake show that the regularization parameters obtained by U curve method has the advantage of high accuracy and no need to rely on data fitting accuracy than L curve method in coseismic slip distribution inversion.
WANG Leyang,ZHAO Xiong. Using U Curve Method to Determine the Regularization Parameters of Coseismic Earthquake Slip Distribution Inversion[J]. jgg, 2018, 38(11): 1196-1201.