State Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling

A Study on the Enhanced Longitudinal Resolution in Radio-Electromagnetic Wave Transillumination Detection

Based on the governing equations of the electromagnetic radiation field and the theory of multi-layer media propagation, the governing equations for electromagnetic wave attenuation are derived. A stable solution to the resulting large-scale sparse linear system is obtained using...

A joint filtering method for in-seam seismic signals based on envelope fluctuation awareness and local IMF selection and reconstruction

Severe noise in underground coal mine seismic signals degrades first-break picking accuracy and subsequent data interpretation. To address this, a joint filtering method for in-seam seismic signals based on envelope fluctuation awareness and local Intrinsic Mode Function (IMF) se...