摘要
在探地雷达应用中,确定地下目标的介质参数具有重要意义。为了对探地雷达地下目标参数进行估计,提出了将探地雷达偏移处理和时域目标参数反演结合起来的方法,该算法首先通过偏移处理,确定目标的位置和分布范围,然后采用FDTD和随机逼近优化法进行迭代运算估计目标参数。与传统基于频域的方法相比,该方法具有易于实现、处理速度快等优点。并且通过对模拟数据的处理,验证了该方法的可行性。
For ground penetrating radar （GPR）, it＇s necessary to estimate the buried object material. In this paper, the method of jointing migration and inverse scattering in time domain is analyzed to estimate the object dielectric constant. First, the location of object is estimated with migration, and then FDTD and random approaching optimize method is adopted to estimate the object dielectric constant. Compared with the traditional way based on frequency domain, this approach is easy to be realized. Simulation result shows that the proposed method is feasible.
出处
《中国电子科学研究院学报》
2008年第2期136-139,共4页
Journal of China Academy of Electronics and Information Technology
关键词
探地雷达
参数反演
偏移
ground penetrating radar
inverse scattering
migration
