Target-enclosing inversion using an interferometric objective function

Full waveform inversion is a high-resolution subsurface imaging technique, in which full seismic waveforms are used to infer physical properties. We present novel, target-enclosing, full-waveform framework based on an interferometric objective function. This function exploits the equivalence between convolution and correlation representation formulas, using data from closed boundary around target area of interest. Because such violated when knowledge enclosed medium incorrect, we propose minimize mismatch wavefields independently reconstructed by two formulas. The proposed method requires only kinematic model, specifically overburden for redatuming, does not require prior model below area. In this sense it truly local: sensitive parameters within chosen target, with no assumptions about or scattering regime outside target. theoretical derive gradient new via adjoint-state apply synthetic example exactly redatumed wavefields. A comparison FWI surface target-oriented theorem shows superiority our both terms quality recovery reduction computational cost.