All Stories

  1. Power-law frequency-dependent Q simulations in viscoacoustic media using decoupled fractional Laplacians

    Article • Geophysics, March 2024, Society of Exploration Geophysicists

    Yabing Zhang, Hejun Zhu

  2. A stable Q-compensated reverse-time migration method using a modified fractional viscoacoustic wave equation

    Article • Geophysics, December 2023, Society of Exploration Geophysicists

    Yabing Zhang, Hejun Zhu

  3. Frequency-dependent Q simulation and viscoacoustic reverse-time migration based on the fractional Zener model

    Article • Geophysics, October 2023, Society of Exploration Geophysicists

    Yabing Zhang, Hejun Zhu

  4. Micro-earthquake source imaging and location uncertainty

    Article • Geophysics, August 2022, Society of Exploration Geophysicists

    Hejun Zhu, Chenglong Duan

  5. Viscoelastic wave propagation in transversely isotropic media based on constant-order fractional polynomial approximations

    Article • Geophysics, August 2022, Society of Exploration Geophysicists

    Hejun Zhu, Yabing Zhang

  6. Viscoacoustic reverse time migration with a robust space-wavenumber domain attenuation compensation operator

    Article • Geophysics, August 2021, Society of Exploration Geophysicists

    Hejun Zhu

  7. Surface-offset gathers from elastic reverse time migration and velocity analysis

    Article • Geophysics, October 2019, Society of Exploration Geophysicists

    Hejun Zhu

  8. Elastic least-squares reverse time migration in vertical transverse isotropic media

    Article • Geophysics, October 2019, Society of Exploration Geophysicists

    Jidong Yang, Hejun Zhu

  9. Viscoacoustic least-squares reverse time migration using a time-domain complex-valued wave equation

    Article • Geophysics, September 2019, Society of Exploration Geophysicists

    Hejun Zhu, Jidong Yang

  10. Viscoacoustic reverse-time migration using a time-domain complex-valued wave equation

    Article • Geophysics, August 2018, Society of Exploration Geophysicists

    Jidong Yang, Hejun Zhu

  11. Isotropic elastic reverse-time migration using the phase- and amplitude-corrected vector P- and S-wavefields

    Article • Geophysics, July 2018, Society of Exploration Geophysicists

    Jidong Yang, Hejun Zhu, yang zhao

  12. A finite-difference approach for solving pure quasi-P-wave equations in transversely isotropic and orthorhombic media

    Article • Geophysics, July 2018, Society of Exploration Geophysicists

    Hejun Zhu

  13. Elastic Gaussian beam migration for multicomponent records

    Article • Geophysics, March 2018, Society of Exploration Geophysicists

    Jidong Yang, Hejun Zhu

  14. Optimization of Gaussian beam migration

    Article • Geophysics, January 2018, Society of Exploration Geophysicists

    Hejun Zhu, Jidong Yang

  15. Full-waveform inversion using seislet regularization

    Article • Geophysics, September 2017, Society of Exploration Geophysicists

    Hejun Zhu, Sergey Fomel

  16. Elastic wavefield separation based on the Helmholtz decomposition

    Article • Geophysics, March 2017, Society of Exploration Geophysicists

    Hejun Zhu

  17. Building good starting models for full-waveform inversion using adaptive matching filtering misfit

    Article • Geophysics, September 2016, Society of Exploration Geophysicists

    Hejun Zhu, Sergey Fomel

  18. A Bayesian approach to estimate uncertainty for full-waveform inversion using a priori information from depth migration

    Article • Geophysics, September 2016, Society of Exploration Geophysicists

    Hejun Zhu, Sergey Fomel