Application of Gaussian beam pre-stack depth migration in rugged seabed

Strong fluctuation of seabed , abrupt variation in depth and dip of seabed bring seismic imaging prob-lems, such as irregular reflection waves , obvious multiple waves , serious lateral wave development , poor ima-ging on base surface and depression structure , low signal-to-noise ratio of middle and deep layers .In this pa-per, Gaussian beam migration imaging method is used to analyze the imaging effect of rugged seabed in deep water area , and the ray tracing method of wavefront construction method is used to analyze the kinematic charac -teristics of seismic waves .By improving the design of seismic data acquisition and observation system , imaging quality of fine structures is improved .