Speaker: Deshan Feng

Affiliation: Central South University

Academic title: Professor

Abstract:

GPR is a non-destructive detection technology with high resolution and strong anti-interference ability. In recent years, it has been widely used in shallow exploration, road detection, planet detection and other fields. When the underground structure or abnormal body is complex, the waveform information in the radar data is difficult to analyze directly, and migration and inversion are required. Migration can home the reflected wave and converge the diffracted wave to the real positions, which can quickly obtain the structural information. Meanwhile, physical parameters are important indicators for identifying the physical properties of the target body and quantitatively depicting it. Full waveform inversion (FWI) utilizes all waveform information, theoretically has the highest imaging accuracy, and can perform precise description of physical parameters. Through in-depth research on GPR migration and FWI, we aim to achieve high-precision imaging of GPR data.

Biography:

Deshan Feng is a professor, doctoral supervisor, and vice president of the school of Geosciences and Info-physics at Central South University. He is also the Deputy Secretary-General of Chinese Geophysical Society and the Chairman of Geophysical Society in Hunan. He is mainly engaged in research on ground penetrating radar theory and methods, geophysical data processing, forward simulation and inversion imaging.