Modern socioeconomic factors such as global timber trade and international travelling have contributed to the rapid increase of Emerging Infectious Diseases (EIDs) of trees with devastating effects to the European forests and woodlands. To that extent, numerous non-destructive methodologies have been suggested as diagnostic tools in order to effectively monitor and maintain potential outbreaks. Ground-penetrating radar (GPR) is an appealing method for tree monitoring as it provides with a trivially deployable and efficient detection tool, suitable for large-scale forestry applications. Nonetheless, traditional GPR approaches are tuned for surface measurements and they are not compatible with the unique measurement configurations associated with forestry applications. Within that context, we present a novel-processing framework, which is capable of addressing features with irregular measurements on closed surfaces. A positioning method is described that exploits a wheel-measuring device in order to accurately associate each A-Scan with its corresponding coordinates. In addition, a processing pipeline is presented that aims at eliminating the ringing noise due to the layered nature of the trees. Lastly, a reverse-time migration is applied to the processed B-Scan in order to effectively map the reflectors present within the trunk. The suggested scheme is successfully tested in both numerical and real-field experiments, indicating the validity of the current approach.

现代社会经济因素，例如全球木材贸易和国际旅行，促进了树木的新兴传染病（EID）的快速增长，并对欧洲森林和林地造成了破坏性影响。在那种程度上，已经提出了许多非破坏性方法作为诊断工具，以便有效地监测和维持潜在的暴发。探地雷达（GPR）是一种用于树木监测的吸引人的方法，因为它提供了可轻松部署且高效的检测工具，适用于大规模林业应用。但是，传统的GPR方法已针对表面测量进行了调整，并且与林业应用相关的独特测量配置不兼容。在此背景下，我们提出了一个新颖的处理框架，能够处理封闭表面上不规则测量的特征。描述了一种定位方法，其利用车轮测量装置以便将每个A扫描与其相应的坐标精确地关联。另外，提出了一种旨在消除由于树木的分层性质而引起的振铃噪声的处理流水线。最后，将逆时偏移应用于已处理的B扫描，以便有效地映射躯干内存在的反射器。所建议的方案已在数值和实际实验中成功测试，表明了当前方法的有效性。描述了一种定位方法，其利用车轮测量装置以便将每个A扫描与其相应的坐标精确地关联。另外，提出了一种旨在消除由于树木的分层性质而引起的振铃噪声的处理流水线。最后，将逆时偏移应用于已处理的B扫描，以便有效地映射躯干内存在的反射器。所建议的方案已在数值和实际实验中成功测试，表明了当前方法的有效性。描述了一种定位方法，其利用车轮测量装置以便将每个A扫描与其相应的坐标精确地关联。另外，提出了一种旨在消除由于树木的分层性质而引起的振铃噪声的处理流水线。最后，将逆时偏移应用于已处理的B扫描，以便有效地映射躯干内存在的反射器。所建议的方案已在数值和实际实验中成功测试，表明了当前方法的有效性。