Influence of Soil State on Characteristics of Seismic Signals from Moving Objects

The paper presents studies to establish the influence of soils state on characteristics of seismic signals from moving objects. The effect of ground temperature and moisture on the passage of seismic waves is considered. It is shown that surface waves, which are used to detect moving objects, are characterized by the same propagation effects in soils as body seismic waves. It has been established that an increase in ground moisture in its effect on seismic signal characteristics is equivalent to an increase in absorption coefficient of soil. This leads to a greater attenuation of seismic signal and, accordingly, to a decrease in the detection range of moving objects by seismic devices and systems.