Feasibility study of full waveform inversion of Love-SH waves for detecting small-scale shallow anomalies

Feasibility study of full waveform inversion of Love-SH waves for detecting small-scale shallow anomalies

Blog Article

In engineering surveys, conventional SH-wave seismic exploration methods exhibit limited resolution for detecting small-scale shallow anomalies, often failing to meet practical requirements.Seismic full waveform inversion (FWI), a high-resolution imaging technique, is based on waveform fitting and utilizes the complete waveform information of seismic records to invert subsurface medium parameters precisely.This study explores the feasibility of employing Love-SH wave FWI 9002nc to enhance the detection of small-scale shallow anomalies.

First, the theoretical methodology of SH-wave FWI is introduced, followed by the development of a theoretical model designed to assess its resolution ability for small-scale geological anomalies.Theoretical analysis and numerical experiments indicate that the Love-SH wave FWI method demonstrates strong resolution capabilities for small-scale anomalies near the surface, and compared to Rayleigh-PSV wave FWI, Love-SH wave FWI exhibits less parameter crosstalk and lower inversion nonlinearity, facilitating easier lego.bonsai tree convergence to a global minimum.