Application of high density bispectral analyzing method to velocity analysis in anisotropy media

The moveout curve is non-hyperbolic because of the anisotropy in different scales,especially large offsets or steep dips.So the velocity analysis is complex and must take anisotropy into account.In this pa-per the application of high-density velocity analysis of CGG to resolve velocity analysis in anisotropy media is introduced.It's proven effective for PSTM in real seismic data.