A method of seismic signal de-noising based on S domain

摘要

Based on the good time-frequency focusing of S transform, this paper introduces the generalized S transform (GST), which can flexibly chose the window function, to process the seismic signal, and systematically study the application of GST in the signal-noise separation of seismic data. This paper first uses the generalized S transform to decompose seismic data, and select suitable threshold to suppress the noises for the noisy frequency profile, and then extract significant signals, lastly reconstructs the seismic data processed. The synthetic and real seismic data processing experiments show that the method in this paper can efficiently separate signal and noise, and improve seismic section signal-to-noise ratio and seismic resolution.