Localization, Recognition, and Classification of a Superficial Seismic Source in an Inhomogeneous Mean

摘要

Localization of the source of a signal coming from a superficial seismic source is more complex than the localization of a source into a homogeneous medium [1, 7]. In fact, wave propagation in an inhomogeneous medium, such as the earth ground, is affected by reflections and nonlinearity due to the elastic properties of the terrain and its subjacent layers that modify the shape of the source signal, introducing new attributes noticeable in time and in frequency domain. In addition, prolonged rainfalls and sun exposure cause changes in the properties of the medium itself.