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消除探地雷达数据的子波衰减和频散的反滤波方法

DOI: 10.6038/cjg20140322, PP. 932-938

Keywords: 探地雷达,衰减和频散,反滤波

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Abstract:

消除探地雷达数据的子波衰减和频散可以很好地提高探地雷达的勘探深度和勘探分辨率.常用的消除探地雷达数据的子波衰减和频散方法为反Q滤波方法.该方法需要利用地下介质的Q参数,但是正确求取地下介质的Q参数很困难.针对这一问题,本文提出了一种消除探地雷达数据的子波衰减和频散的反滤波方法.该方法以地下介质反射系数是随机数为前提,利用地下介质等效滤波器具有最小相位这个特性,通过求取等效滤波器的振幅谱来求取等效滤波器的反滤波器.最后,利用该反滤波器对探地雷达数据进行反滤波,实现消除探地雷达数据的子波衰减和频散.

References

[1]  Chen Y Q, Xiao B X. 2005. On the status quo and development of ground penetrating radar. Chinese Journal of Engineering Geophysics (in Chinese), 2(2): 149-155, doi: 10.3969/j.issn.1672-7940.2005.02.015.
[2]  Di Q Y, Xu K, Wang M Y. 2000. The attenuated radar wave migration with finite element method. Chinese Journal of Geophysics (in Chinese), 43(2): 257-263, doi: 10.3321/j.issn:0001-5733.2000.02.014.
[3]  Economou N, Vafidis A. 2010. Spectral balancing GPR data using time-variant bandwidth in the t-f domain. Geophysics, 75(3): J19-J27, doi: 10.1190/1.3374464.
[4]  Futterman W I. 1962. Dispersive body waves. Journal of Geophysical Research, 67(13): 5279-5291, doi: 10.1029/JZ067i013p05279.
[5]  Fang G Y, Zhang Z Z, Wang W B. 1998. Numerical simulation of Ground Penetrating Radar. Journal of Microwaves (in Chinese), 14(4): 288-295.
[6]  He Q D, Xiong W G. 1990. Course in Applied Geophysics—Seismic Exploration (in Chinese). Beijing: Geological Publishing House.
[7]  Irving J D, Knight R J. 2003. Removal of wavelet dispersion from ground-penetrating radar data. Geophysics, 68(3): 960-970, doi: 10.1190/1.1581068.
[8]  Kolmogorov A N. 1939. Sur I''interpolation et I''extrpolation des suites stationnaires. Comptes Rendus de I''Acadamie des Sciences, 208: 2043-2045.
[9]  Li H, Lu G Y, He X Q, et al. 2010. The progress of the GPR and discussion on its future development. Progress in Geophysics (in Chinese), 25(4): 1492-1502, doi: 10.3969/j.issn.1004-2903.2010.04.043.
[10]  Aki K, Richards P G. 1980. Quantitative Seismology, Vol.1: Theory and Methods. W. H. Freeman and Company, 173-175.
[11]  Cheng Q S. 1993. The Theory of Digital Signal Processing (in Chinese). Beijing: Petroleum Industry Press.
[12]  Li J, Guo C C, Wang F M, et al. 2007. The summary of the surface ground penetrating radar applied in subsurface investigation. Progress in Geophysics (in Chinese), 22(2): 629-637, doi: 10.3969/j.issn.1004-2903.2007.02.043.
[13]  Liu S X, Zeng Z F. 2007. Numerical simulation for ground penetrating radar wave propagation in the dispersive medium. Chinese Journal of Geophysics (in Chinese), 50(1): 320-326, doi: 10.3321/j.issn:0001-5733.2007.01.040.
[14]  Oden C P, Powers M H, Wright D L, et al. 2007. Improving GPR image resolution in lossy ground using dispersive migration. IEEE Transactions on Geoscience and Remote Sensing, 45(8): 2492-2500, doi: 10.1109/TGRS.2006.888933.
[15]  Slob E, Sato M, Olhoeft G. 2010. Surface and borehole ground-penetrating-radar developments. Geophysics, 75(5): A103-A120, doi: 10.1190/1.3480619.
[16]  Tonn R. 1989. Comparison of seven methods for the computation of Q. Physics of the Earth and Planetary Interiors, 55(3-4): 259-268, doi: 10.1016/0031-9201(89)90074-5.
[17]  Tonn R. 1991. The determination of the seismic quality factor Q from VSP data: a comparison of different computational methods. Geophysical Prospecting, 39(1): 1-27, doi: 10.1111/j.1365-2478.1991.tb00298.x.
[18]  Turner G. 1994. Subsurface radar propagation deconvolution. Geophysics, 59(2): 215-223, doi: 10.1190/1.1443583.
[19]  Turner G, Siggins A F. 1994. Constant Q attenuation of subsurface radar pulses. Geophysics, 59(8): 1192-1200, doi: 10.1190/1.1443677.
[20]  Wang Y H. 2006. Inverse Q-filter for seismic resolution enhancement. Geophysics, 71(3): V51-V60, doi: 10.1190/1.2192912.
[21]  Yao Z X, Gao X, Li W X. 2003. The forward Q method for compensating attenuation and frequency dispersion used in the seismic profile of depth domain. Chinese Journal of Geophysics (in Chinese), 46(2): 229-233, doi: 10.3321/j.issn:0001-5733.2003.02.016.
[22]  Yu Z, Wang Y C, He J, et al. 2009. A review of inverse Q filtering methods. Progress in Exploration Geophysics (in Chinese), 32(5): 309-314, 325.
[23]  Zhao J X. 1986. The application of inverse Q filtering. Oil Geophysical Prospecting (in Chinese), 21(4): 410-421.

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