利用无线电接入技术在100 GHz及以上频段进行地图辅助材料识别
Map-Assisted Material Identification at 100 GHz and Above Using Radio Access Technology
摘要：
在无线通信系统中包括材料识别是为6G系统提供许多机会的新兴领域。通过反射无线电波来确定反射表面的材料，不仅可以提高6G网络的性能，而且可以开发一些令人兴奋的应用。本文首先回顾了几种常用的材料识别方法，然后分析了反射面厚度对反射系数的影响，并提出了“沉降厚度”的概念，它是指能产生稳定反射系数的最小反射面厚度。最后，我们提出了一种新的材料识别方法的射线跟踪和三维地图的基础上。与一些只能在单次反弹反射场景中实现的方法相比，我们将该方法的能力扩展到多次反弹反射场景。
英文摘要：
The inclusion of material identification in wireless communication system is an emerging area that offers many opportunities for 6G systems. By using reflected radio wave to determine the material of reflecting surface, not only the performance of 6G networks can be improved, but also some exciting applications can be developed. In this paper, we recap a few prior methods for material identification, then analyze the impact of thickness of reflecting surface on reflection coefficient and present a new concept "settling thickness", which indicates the minimum thickness of reflecting surface to induce steady reflection coefficient. Finally, we propose a novel material identification method based on ray-tracing and 3D-map. Compared to some prior methods that can be implemented in single-bounce-reflection scenario only, we extend the capability of the method to multiple-bounce-reflection scenarios.
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