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Open access Sep 2026

A Robust Interval- Q Inversion Method Based on Q -scanning and Spectral Matching

Spectral-ratio (SR) methods for estimating the quality factor (Q) from post-stack seismic data often suffer from numerical instability and are highly sensitive to noise. We propose a robust interval-Q inversion method based on Q-scanning and spectral matching. The method consists of three key steps. First, stationary...

Zhi-Wei Li, Ying Shi, Si-Yuan Chen et al. · 0 citations
Open access Aug 2026

Deep Network Reparameterized Full‐Waveform Inversion From Sequential to Simultaneous Sources With Adjoint‐State Method

Full‐waveform inversion (FWI) relies on sequential‐source (SQ) workflows for high imaging precision, while simultaneous‐source (SML) encoding drastically accelerates computation but introduces irreversible wavenumber discontinuity artifacts in hybrid‐domain implementations. Existing automatic differentiation‐based de...

Jingwei Fang, Jie Chen, Lutz Gross et al. · 0 citations
2026

High-Resolution Migration With Stable SVD-Based Inverse Hessian Compensation

Conventional Kirchhoff migration is commonly affected by limited resolution, reflector broadening, and sidelobe contamination. Here, we propose DSVD-IHCM, a migration-imaging method that uses singular-value decomposition-based damped inverse Hessian compensation. The method first constructs local point-spread functions...

Li-Wei Song, Yi-Lin Bai, Ying Shi et al. · 0 citations

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