Abstract:This method includes the following steps:·Linearization of nonlinear wave operator with the aid of inverse scattering theory and Born approximation·Using Green's function to determine the relation between scattering wave field and scattering potential energy·To derive analytic scattering wave-field solution from the depth-dependent analytic expression of Green's function that is obained by making WKBJ approximatron·To offer an amplitude revision operator to cope with amplitude distortion due to big incident angles.The method works in ω-P domain.It can be used to settle the problem of too weak deep energies which arises when we take seismic data as linear source responses.