Gpr Migration Technique Applied Research In Archaeological Exploration

Ground penetrating radar is an effective tool to detect buried targets, which detects buried targets via the discontinuity of dielectric. GPR has a lot of virtues, such as rapid continue surveying, simple and convenient, high resolution, nondestructive detection. It is applied to fields of national defense, police, and construction of highway, engineering, environment, archaeology and other aspects.There are more and more researches on ground penetrating radar technology with the applications of GPR increasing. Data processing's theories and methods are one of the key aspects in GPR researching. These provide a possibility to improve the resolution after geological interpretation because these are useful to picking up parameters in reflection wave including amplitude, phase, and frequency and so on. There are mature in reflection seismic, but these in GPR are elementary.In this paper, though analyzing between the sound approximately equation and the electromagnetic wave equation, we get the similarities in the form of equation. Based on these, we can easily take the migration theories and methods of processing method of reflection seismic into GPR. Two migration methods including 15° Finite difference and wave equation phase displacement are discussed with the steps of performing on computer. These represent three main sorts at present. By phase displacement forward method, we synthesized some two-dimensional geoelectric sections, for example 2-D dipping interface model, 2-D dual geoelectric interface model and concrete pipeline model in homogeneous soil media. Though migration methods processing these sections can prove the migration method's efficiency and identify GPR profiles characters. Finally, using them process field GPR data. The results show that the migration results are much improved. Though analyzing migration results , we can get much useful messages on them.