Velocity Analysis Using Separated Diffractions for Lunar Penetrating Radar Obtained by Yutu-2 Rover

The high-frequency channel of lunar penetrating radar (LPR) onboard Yutu-2 rover successfully collected high quality data on the far side Moon, which provide a chance for us to detect shallow subsurface structures and thickness regolith. However, traditional methods cannot obtain reliable dielectric permittivity model, especially in presence mix between diffractions reflections, is essential understanding interpreting composition materials. In this paper, we introduce an effective method construct velocity model by separating from reflections perform focusing analysis using separated diffractions. We first used plane-wave destruction extract weak-energy interfered strong LPR are into two parts: reflections. Then, macro-velocity Both synthetic ground (GPR) shows that migration results have much clearer structures, compared with un-separated data. Our produce accurate estimation, vital high-precision migration; additionally, estimation directly provides solid constraints at different depth.