Title :
De-aliasing High Resolution Tau-p Transform and Its Application to Wave Fields Separation
Author :
Liu, Baotong ; Li, Guihua
Author_Institution :
Sch. of Phys. & Inf. Sci., Tianshui Normal Univ., Tianshui, China
Abstract :
The tau-p transform is one of the important techniques to eliminate coherent noises and separate wave fields. Operator aliasing artifacts and edge effect artifacts affect its resolution. Therefore, conventional tau-p transform can´t be used simply. This paper presents a new non-iteration high-resolution tau-p transform procedure, which can suppress aliasing artifacts and edge effect artifacts simultaneously, and improve resolution. The results of processing on the synthetic seismogram and real VSP data show that the new procedure is effective.
Keywords :
geophysical signal processing; geophysical techniques; seismic waves; seismology; signal denoising; source separation; transforms; VSP data; aliasing artifact suppression; coherent noise elimination; edge effect artifact; high resolution tau-p transform dealiasing; noniteration high-resolution tau-p transform procedure; operator aliasing artifact; seismogram data; wave field separation; Equations; Filtering; Frequency domain analysis; Geophysics; Image resolution; Noise; Transforms; coherent noises; edge effect; operator aliasing; tau-p transform; wave fields separation;
Conference_Titel :
Computational and Information Sciences (ICCIS), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8814-8
Electronic_ISBN :
978-0-7695-4270-6
DOI :
10.1109/ICCIS.2010.246