Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Acta Geophysica

1 2024

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Time frequency domain combined deconvolution method

Zhou Wei, Zhou Huailai, Long Dan, Yan Haitao, Liu Junping

Acta Geophysica

2024

Vol. 72, no. 2

727--741

In the process of seismic wave propagation, high-frequency energy is absorbed and attenuated by the stratum, and the dominant frequency and resolution decrease. To recover the energy of the high-frequency attenuation of seismic waves, a high-resolution processing method of time-frequency domain combined deconvolution (TFCD) is proposed. This method is different from the traditional time-frequency domain deconvolution because it considers the theory that the wavelet amplitude spectrum is smooth and has a low frequency. Wavelet separation is first conducted in the secondary spectral domain of seismic records and then smoothed in the log-domain to extract the time-frequency domain wavelet, which improves the accuracy of time-frequency domain deconvolution. This method comprehensively considers the wavelet shape and frequency characteristics, and can effectively improve seismic data resolution.