该文从麦克斯韦(Maxwell)两个旋度方程出发,分析了地质雷达二维TM高频电磁波的特性,运用K.S.Yee氏建立的网格对地质雷达的传播空间进行剖分,建立了地质雷达二维时域有限差分数学模型,并推导出地质雷达正演模拟方程;通过对地质雷达常见的*.dzt数据存储格式的分析和了解,把用自制的C语言模拟程序模拟出来的数据导入到雷达系统中成图;并通过对两个常见的地电模型的模拟取得了满意的效果。 Based on Maxwell’s two curl equations, this paper analyzes the characteristics of two-dimensional TM high-frequency electromagnetic waves of GPR, and dissects the propagation space of GPR by using the grid established by KSYee. Dimensional finite difference time-domain mathematical model and derive the forward modeling equation of the GPR. By analyzing and understanding the common data storage format of the GPR, the data simulated by the homemade C language simulation program is imported into the radar System, and achieved satisfactory results through the simulation of two common geoelectric models.