Research on moisture content prediction by short-time energy spectrum

The change of moisture content will affect the vertical support force of the urban highway soil base layer directly, and high moisture content may lead to highway damage. In order to predict the moisture content by ground penetrating radar, we built a physical model with the scale of 1:1. The moisture content was measured from 22 vertical pipes and the whole moisture content was found by the physical model. Through the study of the relationship between the short-time energy spectrum and the moisture content, we propose an algorithm to predict the moisture content of the urban highway soil base layer from the ground penetrating radar image.