In recent years, ground penetrating radar ( GPR) technique is gradually becoming a powerful and effective method for the nondestructive detecting of reinforced concrete structures, roadway, bridge, subsurface conduit and so on. 近年来,探地雷达技术作为一种新兴的无损检测技术正逐渐成为钢筋混凝土结构、道路桥梁、地下管道等结构物的主要检测手段。