中文摘要：

波速估计是探地雷达中的一个重要的课题，在前视探地雷达中尤其重要，它是前视探地雷达成像和对目标定位的基础．本文用合成孔径处理和速度扫描的方法建立x-t-v数据矩阵，在x-t-v矩阵中根据杂波和曲线顶点处沿v轴方向的“叠加幅度-波速”曲线的不同特点，提取目标回波曲线顶点区域，在提取的曲线顶点区域选取对波速变化敏感的回波曲线顶点来估计波速．对实测数据的处理证明了其有效性．

英文摘要：

The estimation of wave speed is one of the key problems in the research of ground penetrating radar, particularly in the forward looking ground penetrating radar. It is the basis of imaging and locating the targets. An x-t forward looking ground penetrating radar（FLGPR） image is,first processed by synthetic aperture imaging with various propagation velocities v.An x-t-v data matrix is then constructed. Next, we extract the hyperbolic apex region and estimate the FLGPR velocity in the hyperbolic apex region. The experimental results show that the proposed method is effective.