Theoretical framework for geoacoustic inversion by adjoint method
Wang Yang1, 2, Zhao Xiao-Feng2, 3, †
The flowchart of the iteration process for geoacoustic inversion by adjoint NLBCPE method, where “0→R” means integrating the forward model along the range 0 to R, and “R→0” means integrating the adjoint model in the reverse direction.