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An Improved Virtual Real Source Method to Estimate Source Wavelet from Surface Waves
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 23rd European Meeting of Environmental and Engineering Geophysics, Sep 2017, Volume 2017, p.1 - 5
Abstract
Summary
Estimation of the seismic source wavelet is of importance in exploration seismology, especially crucial in full waveform inversion problem. We proposed an improved Virtual Real Source method to estimation source wavelet, in which Rayleigh-wave mode separation is necessary due to the existence of higher modes. A synthetic example was performed, which proved high accuracy of the proposed method. Source wavelet estimated by the proposed method is much more accurate comparing to the conventional method, which indicates the importance of performing mode separation in the source wavelet estimation. It also verifies the effectiveness of the proposed method.
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