Hybrid Ray Tracing FDTD UWB-Model for Object Recognition

In this paper an approach for object recognition by the backscattered UWB signals is presented. This approach is a part of an UWB imaging and localization concept for emergency scenarios, where fire and smoke prevent using optical systems. The proposed recognition method is particulary useful to asses the intactness of the building construction elements. As such elements are usually composed of different materials, often including a metallic core, the recognition of inner structures is of great interest. For effective optimization and application of the recognition approach reference data sets are necessary. These reference data sets are obtained by a hybrid ray tracing/FDTD method, which allows for the simulation of small complex and inhomogenous objects in realsitc indoor scenarios. Index Terms – UWB imaging, IBST, Channel modeling, Ray tracing, FDTD

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