Abstract：For the 3D seismic data,off-line seismic data and crooked seismic line data,the time-distance relation for the linear noise shows non-linear feature and it is difficult to remove such linear noise by routine de-noise methods.By defining a new space distance,utilizing known seismic velocity to calculate time-distance relation in the new space and conducting time to space transform with equal interval for the data,the non-linear noise was linearizd,then was eliminated.The results of the field data processing proved the method's effectiveness.
