A new implementation

Summary In this paper nonlinear traveltime tomography. This method two loops loop simultaneous iterative reconstruction technique (SIRT) to update The outer loop interpolation and smoothing, iteration. method, this method derivative matrix has As a result, including take advantage systems in with negative truncation error, but computing for Summary In this paper nonlinear traveltime tomography. This method two loops loop uses simultaneous iterative reconstruction technique (SIRT) to update he outer loop interpolation and smoothing, iteration. method, this method derivative matrix has a strong adaptability As a result, including ake advantage systems in with real data egative Summary In this paper nonlinear traveltime tomography. This method two loops: uses simultaneous iterative reconstruction technique (SIRT) to the slowness model, he outer loop interpolation and smoothing, iteration. Compa method, this method derivative matrix strong adaptability As a result, including being ake advantage systems in eal data egative effect truncation error, but computing increasing data and model sizes. In this paper, we present a new implementation method for nonlinear traveltime tomography. This method the inner loop the fast ray simultaneous iterative reconstruction technique (SIRT) to the slowness model, he outer loop interpolation and smoothing, Compa method, this method derivative matrix strong adaptability As a result, this being ake advantage order eal data effect we present a new implementation method for nonlinear traveltime tomography. This method consists of and the outer loop. The inner tracing algorithm and the simultaneous iterative reconstruction technique (SIRT) to linear iteration velocity model through nonlinear with the traditional implementation the Frechet partial tomographic inversion, and model characteristics parallel, core or cluster omputation. this method has almost , except the efficiency of parallel which is favorable