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Application of Single-Frequency Time-Space Filtering Technique for Seismic Ground Roll and Random Noise Attenuation | ||
| فیزیک زمین و فضا | ||
| مقاله 4، دوره 44، شماره 4، دی 1397، صفحه 41-51 اصل مقاله (781.11 K) | ||
| شناسه دیجیتال (DOI): 10.22059/jesphys.2018.249021.1006959 | ||
| نویسنده | ||
| Mohammad Radad* | ||
| Assistant Professor, Department of Petroleum and Geophysics, Faculty of Mining, Petroleum and Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran | ||
| چکیده | ||
| Time-frequency filtering is an acceptable technique for attenuating noise in 2-D (time-space) and 3-D (time-space-space) reflection seismic data. The common approach for this purpose is transforming each seismic signal from 1-D time domain to a 2-D time-frequency domain and then denoising the signal by a designed filter and finally transforming back the filtered signal to original time domain. The technique is efficient for ground roll and also random noise attenuation. However, if we deal with a large data set and a great number of contaminated signals with ground roll noise, a much move consuming time will be required. In this paper, time-frequency filtering is formulated and carried out by a different approach. The data is transformed from original time-space domain into several single-frequency time-space domains, and the filters to reduce noise is designed in the new domains. The transform is easily and completely invertible. The employed time frequency analysis method is a high-resolution version of S-transform. Application to synthetic and real shot gathers confirms the good performance and efficiency of the method for attenuating ground roll noise and random noise. | ||
| کلیدواژه‌ها | ||
| Time-frequency analysis؛ Single-frequency section؛ Filtering؛ Seismic noise | ||
| عنوان مقاله [English] | ||
| Application of Single-Frequency Time-Space Filtering Technique for Seismic Ground Roll and Random Noise Attenuation | ||
| نویسندگان [English] | ||
| Mohammad Radad | ||
| Assistant Professor, Department of Petroleum and Geophysics, Faculty of Mining, Petroleum and Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran | ||
| چکیده [English] | ||
| Time-frequency filtering is an acceptable technique for attenuating noise in 2-D (time-space) and 3-D (time-space-space) reflection seismic data. The common approach for this purpose is transforming each seismic signal from 1-D time domain to a 2-D time-frequency domain and then denoising the signal by a designed filter and finally transforming back the filtered signal to original time domain. The technique is efficient for ground roll and also random noise attenuation. However, if we deal with a large data set and a great number of contaminated signals with ground roll noise, a much move consuming time will be required. In this paper, time-frequency filtering is formulated and carried out by a different approach. The data is transformed from original time-space domain into several single-frequency time-space domains, and the filters to reduce noise is designed in the new domains. The transform is easily and completely invertible. The employed time frequency analysis method is a high-resolution version of S-transform. Application to synthetic and real shot gathers confirms the good performance and efficiency of the method for attenuating ground roll noise and random noise. | ||
| کلیدواژه‌ها [English] | ||
| Time-frequency analysis, Single-frequency section, Filtering, Seismic noise | ||
| مراجع | ||
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Al-Husseini, M. I., Glover, J. B. and Barley, B. J., 1981, Dispersion patterns of the ground roll in eastern Saudi Arabia, Geophys., 46, 121-137. Askari, R. and Siahkoohi, H. R., 2008, Ground roll attenuation using the S and x-f-k transforms. Geophys. Prospect, 56, 105-114. Bekara, M. and van der Baan, M., 2009, Random and coherent noise attenuation by empirical mode decomposition. Geophys, 74, V89-V98. Deighan, A. J. and Watts, D. R., 1997, Ground-roll suppression using the wavelet transform. Geophys, 62, 1896-1903. Gabor, D., 1946, Theory of communication. J. Inst. Electr. Eng., 93, 429–457. Jiao, S., Chen, Y., Bai, M., Yang, W., Wang, E. and Gan, S., 2015, Ground roll attenuation using non-stationary matching filtering. J. Geophys. Eng., 12, 922. Knapp, R. W. and Steeples, D. W., 1986, High-resolution common-depth-point reflection profiling: field acquisition parameter design. Geophys., 51, 283-294. Liu, G., Fomel, S. and Chen, X., 2011, Time-frequency analysis of seismic data using local attributes. Geophysics, 76, P23-P34. Liu, X., 1999, Ground roll suppression using the Karhunen-Loeve transform. Geophys., 64, 564-566. Liu, Y. and Fomel, S., 2013, Seismic data analysis using local time-frequency decomposition. Geophysical Prospecting, 61, 516-525. Mallat, S., 1999, A Wavelet Tour of Signal Processing. Second ed., Academic Press, San Diego, California. Montagne, R. and Vasconcelos, G. L., 2006, Optimized suppression of coherent noise from seismic data using the karhunen-Loeve transform. Phys. Rev. E., 74, 1-9. Porsani, M. J., Silva, M. G., Melo, P. E. M. and Ursin, B., 2010, SVD filtering applied to ground-roll attenuation. J. Geophys. Eng., 7, 284. Radad, M., Gholami, A. and Siahkoohi, H. R., 2015, S-transform with maximum energy concentration: application to non-stationary seismic deconvolution. J. Appl. Geophys., 118, 155-166. Radad, M., Gholami, A. and Siahkoohi, H. R., 2016, A fast method for generating high-resolution single-frequency seismic attributes. J. Seism. Explor., 25, 11-25. Stockwell, R. G., Mansinha, L. and Lowe, R., 1996, Localization of the complex spectrum: The S-transform. IEEE Trans. Sig. Process., 44, 998-1001. Tartham, R. H., Keeney, J. W. and Noponen, I., 1983, Application of the tau-p transform (slant-stack) in processing seismic reflection data. Explor. Geophys., 14, 163-172. Wang, Y., 2010, Multichannel matching pursuit for seismic trace decomposition. Geophys., 75, V61-V66. Wiggins, R. A., 1966, W-K filter design. Geophys. Prospect., 14, 427-440. Wu, X., and Liu, T., 2009, Spectral decomposition of seismic data with reassigned smoothed pseudo Wigner-Ville distribution. J. Appl. Geophys., 68, 386-393. Yarham, C., Boeniger, U. and Herrmann, F. J., 2006, Curvelet-based ground roll removal. 76th Annual International Meeting, SEG, 2777-2780. Yilmaz, O., 2001, Seismic data analysis. SEG, Tulsa, OK. | ||
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