High resolution radon transform and wavefield separation

Radon transform (RT) has been widely applied in seismic data processing and interpretation, it owns fine effect in the events identification, wavefield separation, de-multiples, velocity analysis etc. This paper discusses the factors that affect the resolution of RT and the strategies for achieving the high resolution. We solve the spare matrix by the conjugate gradient [6], which does not affect the resolution and improves the computation efficiency. On the basis of the differences of velocity and intercept time between p-wave and s-wave, we separate the seismic waves by the high resolution hyperbolic RT. With theoretical models and the practical data, it makes clear that the resolution and computation efficiency of the conjugate gradient for solving the hyperbolic RT algorithm is better and more practical to separate the wavefields.