3 papers
physics.geo-ph2026
PSDWII: Physical-Structure-Driven Waveform Inversion Imaging
Shengchang Chen
This paper proposes a Physical-Structure-Driven Waveform Inversion Imaging framework (PSDWII), grounded in the recognition that surface-recorded seismic data are directly related t…
physics.geo-ph2026
A Spectral-Domain Pseudo-Inverse Method for True 3D Gravity Inversion
Shengchang Chen
The main difficulty in 3D gravity inversion is that surface observations lack vertical wavenumber information, making the problem underdetermined and depth resolution poor. Buildin…
math.NA2026
A Spectral-Domain Pseudo-Inverse Construction Method for Unitary Diagonalizable Linear Inverse Problems
Shengchang Chen
Linear inverse problems are prevalent in geophysics, signal processing, image restoration, and medical imaging. Mathematically, they can be formulated as . When is ill-…