STATE ESTIMATION IN MULTI-SENSOR FUSION NAVIGATION: EQUIVALENCE ANALYSIS ON FILTERING AND OPTIMIZATION

Obtaining the physical properties of ice sheets is important. In this study, we use seismic ambient noise to obtain the shallow S-wave velocity structure at the Dome A region. The result agrees with the ice-core data nearby and reveals radial anisotropy in the firn layer. This study demonstrates that cultural seismic noise provides an effective and environmentally friendly way for the imaging of near-surface structures in Antarctica.