Recent advances in high-resolution Ground Penetrating Radar on board an Unmanned Aerial Vehicle
Recent advances in high-resolution Ground Penetrating Radar on board an Unmanned Aerial Vehicle
复制标题
无人机上高分辨率探地雷达的最新进展
DOI：
--
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
F. L. Heras
中科院分区：
文献类型：
--
作者：
M. García;Y. Álvarez;B. Gonzalez;Y. Rodriguez;Ana Arboleya;F. L. Heras
在这方面的贡献，提出了一种方法来处理与一种新的地下成像系统收集的测量。该系统基于在无人机（UAV）上安装探地雷达（GPR）。除了其他优点之外，该系统不需要与土壤接触，这对于检测危险物体（例如，地雷）。然而，仍然存在一些挑战，应该面对的，如加快测量处理，使其更接近实时操作。在这个意义上，两种不同的聚焦方法被应用到几个飞行中的测量，以生成一个高分辨率的合成孔径雷达图像，通过相干组合所有的测量。由于使用了高精度定位系统，这种相干组合是可能的。这两种聚焦方法进行了比较，在图像质量和计算时间检测金属和电介质目标。
In this contribution, a methodology to process the measurements gathered with a novel subsurface imaging system is presented. This system is based on mounting a Ground Penetrating Radar (GPR) on board an Unmanned Aerial Vehicle (UAV). Among other advantages, the system does not need to be in contact with the soil, which is particularly useful for detecting dangerous objects (e.g., landmines). However, there are still several challenges that should be faced, such as speeding up the measurements processing so as to bring it closer to real-time operation. In this sense, two different focusing methods are applied to several in-flight measurements to generate a high-resolution synthetic aperture radar image by coherently combining all the measurements. This coherent combination is possible due to the use of a high accuracy positioning system. Both focusing methods are compared in terms of image quality and computational time for detecting metallic and dielectric targets.