Abstract：Analyzing the advantages and the shortcomings of linear and non-linear inversion methods,thepaper presented a method in two steps for estimation of seismic automatic residual staties.After using nonlinear method to obtain initial solution oflinear inversion,the method uses linear method toobtain the final high-precision solution.The reduced statics model space has been adopted in nonlinear inversion step,accelerating the convergenceof nonlinear inversion.Model and real data showthat the method can better solve the contradiction between desired high-precision staties and poorcomputational efficiency and can be used for staticcorrection processing of seismic data in the regionwith more complicated surface-geologic condition.
