Seismic wave fields modeling and feature in viscoelastic anisotropic media
粘弹各向异性介质中地震波场模拟与特征

By introducing memory variables,superposition operation can be avoided,so wave fields modeling can be easily processed.And by means of pseudospectrum method modeling qP and qS waves in viscoelastic anisotropic meida,with theory analysis,the velocity anisotropy and attenuation anisotropy are investigated.Attenuation anisotropy is more obvious than velocity anisotropy,and the attenuation anisotropy of qS waves is more significant than that of qP waves.In viscoelastic anisotropic media,the effects of viscoelasticity is mainly on wave attenuation and anisotropy on wave fronts.