Abstract:After KL transformation, the continuity and form of the KL transformed seismic data is different from that of original seismic data, and the principal component sequence of the KL transformed seismic data is different from that of the original seismic data as well, as a result the several kinds of reflected signals and the noise can be separated very well. Based on basic principle of KL transformation, application of intrinsic filtering technique to suppress multiple, linear noise and random interference were introduced in this paper. Field seismic data processing results show that the multiples and other noise waves were suppressed very well by using this technique in marine seismic data processing.