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Matching pursuit based on the rotated time-frequency atomic dictionary and its applications to seismic non-stationary data
2019
Journal of Geophysics and Engineering
The time-frequency spectrum of an attenuated seismic wave rotates due to the influence of intrinsic quality factor. Traditional time-frequency analysis methods are either limited by time-frequency resolution or incapable of rotated time-frequency representation. To solve it, a matching pursuit (MP) method based on the rotated time-frequency atomic dictionary (MPFR) was proposed. By introducing a frequency rotation factor to the four-parameter dictionary in the conventional MP method, a
doi:10.1093/jge/gxz043
fatcat:dfdjrvqmzjgfrbch2r2yinlzfi