近些年来,人们对于自然环境的远距离研究方法发生越来越大的兴趣,其中包括表层下雷达这样的有广阔发展前途的新方向。无线电定位的方法不仅可以发现埋藏在地下的目标,测量表层下的厚度,而且还可以获得介质的某些结构特性和电气特性。 自然环境电磁透视的第一次尝试始于本世纪初,而用于冰川探测的脉冲雷达的试验研究是在50年代。 In recent years, more and more people are interested in the long-range research methods of the natural environment, including the new direction with broad prospects for development such as radar under the surface. The method of radio positioning can not only find buried in the target, measuring the thickness under the surface, but also access to some of the media structure and electrical properties. The first attempt at electromagnetism in the natural environment began in the early part of this century, and the experimental study of pulse radar for glacial exploration was conducted in the 1950s.