Detailed radio imaging of buildings at 2.4 GHz

In this study, we resolve radio images reflected off, and transmitted through, a building of brick construction to a resolution of 4-5 m, and identify contributions to the channel impulse response with detailed geometrical features of the environment that correspond to individual ray-optical interactions. We discuss briefly the validity of the common assumptions made by ray-tracing tools in the light of these results. Recommendations for improving the wideband propagation prediction models at the heart of modern planning tools are then made.